How to use Mini-Z differential in WLtoys 1/28 K989 Without Modification
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- เผยแพร่เมื่อ 2 ต.ค. 2024
- This is what some of you have been waiting for.
Now you can use any Mini-Z AWD compatible differential with WLtoys 1/28 series without any modification.
Front one way, ball differential, solid axle you name it! With this one magical kit your car will transcend to higher places.
Have fun!
Update!!! There's a new kit specifically for using WLtoys with Mini-Z differentials. bit.ly/3m1i4bd .
Better, cheaper and will fit Mini-Z/Atomic/GLA ball diff better if you decide to upgrade to that.
All the links are here.
Atomic Universal Shaft 10.5mm: www.rcmart.com/...
Mini-Z ball diff: www.kyoshoameri...
Atomic high precision ball diff: www.rcatomic.co...
GLA ball diff: gl-racing.com/s...
3Racing ball diff: os.3racing.hk/p...
Sinohobby ball diff: goo.gl/U6C6qE
3Racing solid axle: os.3racing.hk/p...
3Racing front one way: www.rcmart.com/...
Mini-Z front one way: rc.kyosho.com/e...
Sinohobby front one way: goo.gl/odJ9bU
Music:
Funkorama by Kevin MacLeod is licensed under a Creative Commons Attribution licence (creativecommon...)
Source: incompetech.com...
Artist: incompetech.com/
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Absolutely amazing I have to say, you have made the experience so much more enjoyable, easier and far more affordable than by having to go through and making our own mistakes to learn from...your explanations are clear and easy to understand.
Thankyou
greeting...
whre ican find the atomic 10,5 mm? ...
in rcmart out of stock ...
thanks you ...
love all mod rc 1/28...
🙏🙏👌👍👍
Seems like Atomic has stopped making 10.5mm shaft. You can get it from RC Aurora instead. This one is also better with more angle and longer thread. ppm-rcracing.com/products/Wide-Crooked-Angle-Universal-Shaft-for-Mini%252dZ-%286061-Blue-1Pair-Long%29.html
It's look easy to do it.Nice! I'll try ..Thanks..Beaver.
Nice Video
Hi , i can't find the longer shafts anywhere do you know where else I can get them from ? Thanks
Aliexpress www.aliexpress.com/item/1005001934496721.html
US/NA www.kenonhobby.com/HRC-GLD-Alum-7075-Universal-Shaft-105mm_p_46610.html
UK www.kenonhobby.com/HRC-GLD-Alum-7075-Universal-Shaft-105mm_p_46610.html
I can't find 10.5 mm atomic shafts in stock anywhere. do I have any other options?
You can also use GL Racing 10.5mm universal shaft or RC Aurora 10.5mm too. If you are in the US then check out Kenonhobby. www.kenonhobby.com/HRC-GLD-Alum-7075-Universal-Shaft-105mm_p_46610.html
For Europe, Mini-Z Racing Italia. www.minizracing.it/minizshop/index.php?main_page=product_info&cPath=906_1059&products_id=14559
They are super expensive and you might want to take your chance with some Aliexpress extended WLtoys K989 CVD. www.aliexpress.com/item/1005001934496721.html
You have amazing ideas always!! I am interested to know where do you bought the bar to give the front divergence to the wheels.
You mean the toe out? Where the wheels are pointing outwards. I cut old steering bar and drill the centre then put the adjustable rod from Sinohobby Mini-Q (the short one for servo) in the middle.
Beaver's Hobby I assumed something like that. And do you use the bar that connected the servo's arm with the wheels or the bar that connect the two wheels? thanks and all we are waiting for your next videos!
Yes, I use the longer one (wheel to wheel bar for Mini-Q) on this servo.
Beaver's Hobby Beaver's Hobby Sorry, I think that I don't make the question correctly. I want to know if the bar that you cut to put the wheels pointing outwards was the wltoys 1/28 bar "wheel to wheel" or the bar "arm's servo to wheel" before joining in with the adjustable rod from Shinohhoby mini-Q. Thanks! !
It's wheel to wheel bar.
I don’t understand stand I bought the same stuff, but the drive shafts are still not long enough
It depends on the diff too. For standard gear diff and front one way it should be alright. If it's ball differential then the ball diff tends to be shorter than other diffs but the dogbone should still reach the diff though. At least that's what I got.
Hi. What type of differential do you recommend to put in the front wheels . My left front wheel stops spinning when there is resistance (when accelerating against a wall for example) , I don't know why.
A normal differential will only send power to the wheel with least resistance. If you can drive it then it's alright. If it starts to act weird like not turning to one side then change it to something else. For driving normally (grip) get a Mini-Z differential or ball differential. For drifting, just open it up and glue it to make locked diff.
@@BeaversHobby locked diff is the way then. Thanks!!!
@@Nikoslido My pleasure.
my stock rear diff stripped, so i decided to order those shafts, instead of the upgraded k989 differential (as i own several nice MiniZ diffs). Seems like currently the only place those shafts are available is this one www.miracle-mart.com/store/index.php?main_page=product_info&products_id=13988 ... on several other places it stated out-of-stock, so initially (couple of weeks back) i decided that this part is gone for good :)
Good luck with your upgrade. Miracle-mart is the official website of Atomic. So I guess it'll be the first place that got re-stock.
You can also look at other manufacture for 10.5mm long CVD like ppm-racing too.
I've never use any of this but this brand is well respected in racing world. ppm-rcracing.com/products/Wide-Crooked-Angle-Universal-Shaft-for-Mini%252dZ-%286061-Black-1-Pair-Long%29.html
aaahhh :) i had never heard of it before, so i was quite surprised it was the only one having those in stock, thanks
What difference can you feel by installing this mini-q's diff
A standard plastic gear diff is much smoother and much more durable than the original WLtoys diff.
The ball diff from Mini-Q is really good. It slips after a while so you'll have to keep adjusting it but it's miles better than WLtoys' original part.
Hi, can i do this upgrades to a WLtoys 284131?
Yes, you can. They are the same chassis.
It's really helpful. Perhaps you can shot a mini drift race video in real track. So we can see the different between each car. Waiting for that.... Keep it up.. Cheers.
Thank you. Race track is a bit difficult to do right now but it's always in my mind.
Do you know where to find a one way diff? alot of them are out of stock and the mini z one is a bit expensive where i live
There's one on the shop I bought from Aliexpress.
One way only www.aliexpress.com/item/1005001670938865.html
One way with solid axle. (I have this kit and it works better than my genuine Kyosho at half the price.) www.aliexpress.com/item/1005001671065507.html
If you will use it with WLtoys, don't forget to buy the long CVD too. It'll label as 25 or 27mm CVD. That will work better than the long CVD I use in this video.
@@BeaversHobby Thanks so much man, i was having a hard time finding one, really saved me!
Yay!!! This is kinda like what im doing to use associated parts on my wl 104001 ^_^ ill have to grab some of these shafts.
can you explain or link to an explanation of the different types of differentials and what they are good for (drift, precision, grip, ..) ?
Unfortunately I have them in different videos and not a single one with all the diffs.
How a differential works - th-cam.com/video/ci54dkbc_Bc/w-d-xo.html
One way (skip to 4:36 )- th-cam.com/video/rTveWKmr8xY/w-d-xo.html
Ball diff - th-cam.com/video/5fvx6Uw8mSU/w-d-xo.html
Basically it's pretty easy like this: One way if for drifting. Gear diff and ball diff are for driving normally. Ball diff is like gear diff but it has adjustable tension. Solid axle or locked diff is usually put in the back on a drift car.
Hi, what did you use for the pinion gears? The metal of the diffs will eat the plastic ones fast.
You can mod Tamiya Mini 4WD motor pinion into the prop shaft pinion. Quality is good. www.1999.co.jp/eng/10117288
Thanks!! Just to clarify this method does not take any modification it just works like plug and play?
No modifications, just plug and play.
@@BeaversHobby cool!!
@@BeaversHobby with these rc car is the oem battery good and last long
@@a4_music21 Yes, it last pretty long. With my style of driving I got at least 30 minutes run time and after a year it's still going strong. I use a good charger though and not the included that might overcharge the battery.
@@BeaversHobby ok cool!! I have a professional charger so I’ll be good in that aspect
thanks for the useful info.
question. can you use the plastic kyosho differential with the stock plastic gears in the wltoys?
Yes, you can.
@@BeaversHobby thanks for the quick response. just one more q. if I choose the front one way, will I need metal gears or can still run plastic? also after 5years since this video, which front one way would you recommend now?
@@demomicrocrawlerclub You can run plastic just like any other diff. As for the one way recommendation, the one I use right now is from aliexpress. www.aliexpress.com/item/1005001670938865.html It's the same as Mini-Z one way but it's a lot cheaper.
@@BeaversHobby thanks again. I bet i won't find such differental for cheaper :D 3racing is out of stock everywhere
Thanks for this great news, Beaver! Also wanted to ask if the "3Racing solid axle" is for the rear? cos the link says it's a mini-Z "front" solid axle. Thanks!
You can use solid axle in both front and rear.
Great that's what i was hoping! Thanks man!
nice one! very good job mate definitely going to buy one or two sets and that one-way diff with different gear ratio's thx
Definitely a must buy. Get it before it's out of stock!
I actually had this idea for a long time and was waiting for the red shafts but they're never restocked. So I got the silver ones instead.
just on time both the last set but wanted one more THX
Hey beaver,
My gearbox is broken, could you recommend the Alu gearbox? Or do you have an other Part in mind?
Also some screws really need to be replaced, ist there Amy good Set for the k989? Stock ones are not really nice
You can replace the screws with M2 screws. Get an assortment kit with different sizes and you'll be OK.
As for the gearbox, there's aluminium upgrade on Aliexpress. I don't know about the quality though and every aluminium upgrade of this car is a gamble so feel free to try your luck.
when I use the atomic 10.5mm shafts on my k989, the wheels wobble a bit even though the nut is fully tightened. Do you have any suggestions to make the wheels stay solid?
Get 3mm shims or AWD wheels shim like these.
International shop www.miracle-mart.com/store/index.php?main_page=product_info&cPath=67_74_1020_1023&products_id=13815
Europe www.minizracing.it/minizshop/index.php?main_page=product_info&cPath=65_196&products_id=248
You can put these in before putting the shaft into the knuckle, adjust them until you get the least wobble but the wheel can still spin freely.
Hi, great ideas for AWD vehicles.
The 3racing front one way diff seams to come with 3 different ring gears. Are they different thicknesses to allow different pinions and change cs ratio settings or are they just spares?
Thanks
Yes, they have different tooth count, 26, 27 and 28T for you to fine tune the gearing.
@@BeaversHobby That is really a great idea. Thanks
@@vaamorais My pleasure.
I love your videos as always. They are super helpful!
when I go from awd drifting to awd touring I don't need to change the one way front diff right?
Yes, exactly. Just use standard Mini-Z diff or ball diff for touring.
@@BeaversHobby I bought the k969 from willow toys so if I buy a one way for the front I have all I need for drifting and touring right?
@@BobBobsta For K969 you'll get all locked diffs (solid axles) for drifting only. If you use it for touring you'll struggle so you'll have to get some gear diffs or ball diffs as well.
@@BeaversHobby solid Axel front and rear? I thought the front would be a normal diff
@@BobBobsta K969 got solid axle on both.
K989 got open diffs.
I have recently got some cheap ball differentials and I see that you sometimes use grease in your diff case but I am wondering if you can use grease in ball diffs too? or does grease only woks for normal differentials?
You can use grease with ball diff too to make the drivetrain smoother and has less friction.
@@BeaversHobby okay I know this is a dumb question but can you explain why locking the diffs in the rear is good for drifting? oh and also what does "front one way" even mean?
one more question, for the quicrun esc and leopard hobby motor combo, can I run 3s with that esc? Though the original esc itself is 3s capable, I am afraid that the part of the wire that they soldered would not be able to take 3s power. you can ignore the motor because I am not using it.
@@forthememes1311 Unfortunately, no. The Quicrun 16BL30 supports 3S but Leopard motors don't. You can try since the ESC supports it but the motor is not going to last long. As for the stock ESC, you can wire new plug to it. It only needs 2 ends, + and -. The middle pin doesn't do anything. Then use 3S with the stock electronics. The motor will heat up like mad but it's winter now so that'll work.
@@BeaversHobby I am using a 3s capable motor with my Quicrun 16BL30. But you know how they soldered the plug for the battery onto the esc from the banggood combo? That's what I am most afraid of. The wire that they soldered on may not be able to take the 3s power. I am not good with electricity so I have to consult with you before plugging any 3s battery in lol
Hi Sir, Have you use any of those metal aluminum differential available ay banggood/aliexpress? Thank you
Yes, if you are lucky you'll get one that works well. If not you'll have to fix it like this th-cam.com/video/5fvx6Uw8mSU/w-d-xo.html .
Hi! Great video, where can I buy this wheels?
These wheels are from Nissan GT-R R33 body set. So you can't buy them separately. Here's the body banzaihobby.com/Kyosho-MZN182 the wheels are direct fit (well, K989 uses Mini-Z AWD platform) but you can't use the body with WLToys without mods because the wheelbase is 94mm but WLtoys wheelbase is 98mm.
If you want quality wheels that are not too expensive, check out original Mini-Z wheels. Here's the set with all the offsets. You can also buy a pair of each offset separately. banzaihobby.com/Kyosho-MDH100W
Hi, i am very much like your tutorials.
However i have one question on the Kyosho one way diff.
My one way diff seems little different. When I release (off) the throttle, front 2wheels are stop like ball diff.
I have used 7000 silicone oil from Kyosho to move smoothly, but it wont work. I checked the wheel tightness and onewaydiff. So my question is is oneway oil can make it better? Or should I try to buy sinohobby’s eway diff? I personally think it is the diff cup joint has some friction to blocking the spinning after release the throttle.
Please let me know if you have any idea.
Thanks!
The oil you use should not be too thick. I usually use WD40 to clean it then bicycle chain oil to lube. If it's still too tight you can try sanding the drive cup shafts down a little bit just so they spin forward.
Thanks Beaver! I have sanded the front oneway drive cup shaft. And its working!!You are the RC GOD!
@@chongwooshin268 My pleasure. Glad that worked out.
Hey man, how well do you think using a mini z diff with wltoys driveshafts would work on a 1/32 diecast/slot car model?
Not sure if it'd fit but for drivetrain system alone it'll work well.
Beaver's Hobby damn ok. I’m gonna have to find something else then. I’m working on my first ever conversion right now, but I think I’m gonna do a whole series on the Fast and Furious diecast set. I want to get the drivelines accurate.
@@amszulu Check the wheelbase. I think 1/32 is much shorter than 98mm and probably much narrower than 72mm too.
So you'll have to make your own chassis. The other way is to use Mini-Z or Mini-Q Q2/MRC rear wheel drive chassis. They can be shorten to 86mm wheelbase and 65mm width.
I used the link to the kit specifically for using WLtoys with Mini-Z differentials, waited for them to ship from banggood. Sadly, they were exactly the same size. I hope this info helps someone not wait for wrong parts, if anyone has a link to the proper 27mm axles for doing this I'd greatly appreciate it. Thank you!
I bought from this a few times now and always got the long ones. bit.ly/3m1i4bd
Sinohobby dif is out of stock. Is there anywhere else to get a one way dif cheaper than kyosho?
This one comes with spacers already. The drive cup shafts are still short though so you'll have to do the mod we discussed earlier. www.aliexpress.com/item/4000853225274.html
@@BeaversHobby for some reason it won't let me pay for that one or the other one I found with PayPal. I have no idea why. I can pay for other stuff with PayPal just not the difs. Is Aliexpress safe to pay with me card?
@@goingcrazy00 Paypal doesn't work with Aliexpress, apparently. Yes, it's safe to pay with regular card. I haven't bought anything from this shop but the others have and they got the package delivered.
@@BeaversHobby great. Thanks AGAIN. lol
@@goingcrazy00 Always a pleasure.
Is this same for the wltoys 284131?
Yes, it's the same. However it depends if your 284131 is still the old batch or if it has been updated to the new batch with the same internal as 284010. If it's the updated one then Mini-Z diffs won't fit anymore. Check out all the differences in the updated version here. th-cam.com/video/9AkwHF-D-zI/w-d-xo.html
@@BeaversHobby thank you for the information. I do have the newer batch of the 284131.
@BeaversHobby I was looking around for some upgrades and came across a diff housing kit that came with diffs. This got me thinking, couldn't I swap the housing to the old style and be able to use the Mini Z diff?
@@beardedxj Yes, you can do that and it'll revert back to Mini-Z compatible.
All the parts get here and the aluminum gearbox was machined so poorly I had to shim with 3 shims. Then once bolted the pocket was not milled large enough and just barely caught the back side of the diff causing it to seize up. I have ordered the original plastic gearboxes and will be throwing away the aluminum ones.
Hi! I ordered this differential from banggood but I realized it came without the washers... Do you know where I could get them? thanks!
The washers are 6x8mm shims. You can probably find them in your local hobby shop too. But in case you can't find one, here they are, the whole set. www.miracle-mart.com/store/index.php?main_page=product_info&cPath=83_1066&products_id=6103
@@BeaversHobby Thank you! I tried searching for them on a local ahrdware store but without luck, I'll try a differente place
Do you have any websites with available front one way?
Banzaihobby has it. It's a bit expensive because it's Kyosho but quality is very good. banzaihobby.com/Kyosho-MDW017
If I go for the sinohobby diff, is the new shaft still required since they claim it is for 1:28 ?
I want to upgrade the diffs on my wltoys since the original diffs are so fragile.
Is the new shaft also avaiable on banggood (or something similar) ?
Yes, you'll need this shaft because Sinohobby diff is for narrow width 1/28 (which WLtoys are wide).
Atomic is constantly out of stock so you can get it from RC-Aurora ppm-rcracing.com/products/Wide-Crooked-Angle-Universal-Shaft-for-Mini%252dZ-%286061-Blue-x4Pcs-Long%29.html
Or black swing shafts ppm-rcracing.com/products/Wide-Crooked-Angle-Universal-Shaft-for-Mini%252dZ-%286061-Black-x-4-Pcs-Long%29.html
So on a k969 do I wanna upgrade the front drifferantial to one way and rear to soild for drifting or should I use say the atomic differential for the rear? I have purchased the aluminum suspension arms as well for my 969 because of your videos keep up the great work!
Front one way and rear solid is what you need. Just change the front and keep the rear. You'll need long universal shafts/swing shafts 10.5mm from Atomic or other brands.
You won't need Atomic ball differential unless the standard part wear out and you want to try diff with adjustable tension.
@@BeaversHobby to bad the only one way I can find right now are the mini z and there 50 bucks lol ill do what I can for now see how the car drifts
@@condensatannation7496 Aliexpress got it but it's a long wait as usual. www.aliexpress.com/item/4000853225274.html
Beaver's Hobby hey beaver, i just got the wrong wltoys car. I wanted a k989 car but was shipped a k969. The only difference is wheels and the k969 I think the k969 has a solid rear axle instead of a differential. I’ve already changed the wheels and tires, should I change to a k989s differential or upgraded to another one? A solid rear axle is good for drifts but bad for gripping corners right?
@@F00FYMAN Yes, solid axle is for drifting and you should change the diffs. Well, this is a good opportunity to upgrade them to ball differential anyway.
Any idea where to get the arms now?
Here bit.ly/3m1i4bd . Better, cheaper and will fit Mini-Z/Atomic/GLA ball diff better if you decide to upgrade to that.
Atomic universal shaft 10.5mm at rcmart is out of stock. Do you know where to find it? I can not find it at banggood and aliexpress. Tx..
Try RC-Aurora ppm-rcracing.com/products/Wide-Crooked-Angle-Universal-Shaft-for-Mini%252dZ-%286061-Black-x-4-Pcs-Long%29.html
Or Eagle Racing (this one is 11mm) www.ebay.com/itm/MA20VE-11L-AL-Universal-Joint-Shaft-L-For-AWD-MA-020VE/253151171457?hash=item3af0fc5381:g:3ZsAAOSwd7xZuQnq:rk:35:pf:0
ps. It's special shaft for Mini-Z MA020 wide chassis (and AMZ/BZ wide chassis) so naturally it's not on banggood.
I can't every morning at 5 that I found for my car does not work I watch hundreds of videos and I've had nothing but problem with every single piece that I have purchased I finally broke down and bought a brushless setup and now that thing runs like a rape date I replaced the main reduction Gear with a 27 tooth wltoys spur gear along with the 959 regular 17 tooth gear on the motor it did away with the slipper clutch and I'll put money on it that's the one that I got will spank the s*** out of 99% of the cars on here
Well.. if switch doesn't turn on the car then it must be electronics.
Not sure where you go with this but I understand your car is very fast right now.
Is there any alternative to the Atomic BZ-UP019. I am having difficulty finding them stocked in USA
Sorry, I've just seen this. You can use RC-Aurora or Eagle Racing long universal shaft too.
www.ebay.com/itm/MA20VE-11L-AL-Universal-Joint-Shaft-L-For-AWD-MA-020VE/253151171457?
ppm-rcracing.com/products/Wide-Crooked-Angle-Universal-Shaft-for-Mini%252dZ-%286061-Blue-1Pair-Long%29.html
Could you use the AMZ-OP037-A ones instead since they are the longer ones?
I think those are 10mm, 0.5mm shorter than what I use but I suppose they work too.
looks like those cv axles are sold out everywhere..
Try Atomic official site. www.miracle-mart.com/store/index.php?main_page=product_info&cPath=67_74_1029&products_id=13988
Also you can use any 10.5mm or long swing shafts for Mini-Z wide chassis. GL Racing also make them.
@@BeaversHobby I see Kyosho makes a long hardened CV driveshaft for the mini-z, do you think It could fit? I don't see what length it is anywhere. www.rcjaz.co.uk/kyosho-mdw204-hard-long-universal-swing-shaft2pcs-p-19470.html?ref=cart hm... I'll just order from Miracle-mart I think. Thank you for you quick responses Beaver.. Much appreciated.
@@SantaClaw Kyosho long CV will need some work, you'll need to replace the outer joint with the original one because the screw isn't long enough. RCJaz ships from either Hong Kong or China so it's not going to be any difference than Atomic anyway. Unless you got some discount coupon there though.
@@BeaversHobby Yes, I will order directly from them. Again, thank you for the help. :) I have a brush-less upgrade + new radio/receiver + a carbon fiber kit on the way for this little soon to be beast!
@@SantaClaw My pleasure. Good luck with the project.
Nice viedo and very good tip. I see you have an adjustable metal steering rod. Where is it from? can you post a link?
It's a combination between Mini-Q turnbuckle tyre rod and standard part of WLtoys cut and drill the middle to make adjustable toe rod, as for the steering rod it's from Mini-Q with a bit of mod.
I can't find link that I bought (it's long gone) but you can make one with this turnbuckle too. goo.gl/vTjbFh
Here you can see the whole thing easier th-cam.com/video/zB3pUN9XiSw/w-d-xo.html The mod start at 6:42.
Great! Thanks mate!@@BeaversHobby
I was thinking of trying the same model with sinohobby mini q swing arm. Do u know if it will work?
No, it won't. Sinohobby swing arm is the same as standard WLtoys (and Mini-Z) which is 8.5mm shaft. To use standard AWD diff you need either Atomic long shaft or Mini-Z long shaft for MA020 wide chassis.
I trust this info, thank u!
Hi Beaver! Can the inside of sino one way diff be oildnir lubricated?
Yes, actually you need to lubricate it with a bit thick oil or better still, one way bearing oil.
@@BeaversHobby just drop oil down the end into it?
Yes, pull the cup out and drop the oil in.
Is there a way to cure the spinning out once off the gas?
Usually something goes wrong with the drivetrain that make one or more wheel to spin slower than other wheels or lock up when you let go of the throttle. Check if all 4 wheels aren't over tighten first then check if the diff work correctly.
Also check tyres contact on the floor if it's equals on all corners.
By the way, do you have front one way installed? If so it's quite normal for the car to veer one side after letting go of throttle.
Beaver's Hobby yes I have a front one way. Off the gas on tile with drift tires it does a complete 180 spin off the gas
@@thejackshow01 That's normal. Try to trim or set the steering so it go straight as an arrow will help a bit but if you go very fast and let go of throttle, it'll spin.
Beaver's Hobby thank you so much!
@@thejackshow01 My pleasure.
Will the wltoys drive cups fit into the normal mini z differential like the black one you showed at the beginning?
Yes, it'll fit. But file the end off a bit so it won't rub against the wheel.
Fun fact xmod evolution pinion gears share the same pitch as the k989. Gpm makes a 9t and 10t delrin gear for the evolution line i have not yet tried it on the car as i cannot get the differential to work properly. Theyre are really my only issue with the car.
@@BeaversHobby also have you tried the wltoys adjustable ball diff being sold in sets of two on ebay. They look to be plastic and unbranded so quality is questionable.
@@billyeason9899 Thanks for the info. I'm glad GPM is still around.
I just got the ball diff for WLtoys today and the only 2 good things are it's made of metal and you can use it with WLtoys without changing universal shaft to long shaft. All the rest are pretty bad. As a ball diff it's the worst I've ever had. Right now even after a lot of sanding and run-in it's getting smoother but nowhere near what I'd want to run in my car. Adjustability is also really difficult. Probably my past experience was with Eagle Racing so my expectation was too high but either way you'll need a lot of patience to get it working well.
@@BeaversHobby yeah gpm parts are almost obsolete from retailers. Especially for the mr010 mini z. I am unsure of how the 9t delrin pinion would work out seeing as how the lowest reduction gear i have is the 27t. From my calculations that is a 10.5:1 gear ratio and with a top speed of 18-20kph wouldnt be to great for a touring car. Drift maybe but not racing