ZF8HP70 Teardown
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- เผยแพร่เมื่อ 1 ต.ค. 2024
- In this video, i teardown this 8 speed unit that had no forward, found the C and E clutch burned up. Parts a little rough to get, sent converter out for overhaul and worked real nice on the Road Test. Happy Holidays to all, thanks for the continued support.
I used your videos to rebuild my X5 transmission.
Make it look so easy.
My zf850re @ 60k will pop out of reverse when backing out of my garage? Any ideas?
One acre of parts for a f. gearbox.
Thanks for these videos, they're really helpful. I'd love if you gave a rebuild/reassembly video for this same transmission. *LIKED*
will keep that in mind
Junk no dipstick😊hate them junk took mine out had a six speed auto put in it runs better more realibe 😊
Great video Gary! Do you have a favorite ZF transmission?
I like the ZF6HP26 units
Isn't that the transmission that came with the 2012 ram?
Pretty tricky one there
What was the total cost in this rebuild for the parts? Great video too 👍
A Nag1 to 8 speed swap would be nice!!!
Do you rebuild transfer cases that have clutch’s in them?
Not anymore, shop is way to busy so now i just purchase rebuilt ones
As always , amazing Garry.
Thanks for teaching.
Thank you for your video and knowledge.
You probably seen both the 8hp70 and 8hp75 for the V8 Ram 1500, do the housings have the same dimensions and mounting patterns ? I want to swap my 70 for a 75 and use the 8hp70's electronics so everything is plug n play.
Longest pan I've ever seen.
What pick are you using for the snap ring? Looks much stronger than mine
what time in the video am i using it?
Hey gary i got a 8hp45 bmw f30 320d it was stuck in park stripped down the box and found p2 carrier spinning on input shaft replaced that now when changing to 6th it hesitates and goes back to 5th and then limp mode gear ratio error 5> x any advise will be greatly appreciated
No matter how many times we change the atf fluid.If there's wear on the internal components of the automatic transmission,changing the atf fluid will not resolve it and the car may not even drive anymore.Do you agree?
I guess that depends on what’s worn and how bad. If you have no more friction material left then when you flush it you won’t have the gritty fluid to help and it could make it worse. You should change the fluid before you have problems. But changing fluid can resolve issues, I had a transfer case in a f25 bmw x3 that would shutter when turning and doing a fluid swap fixed the issue.
Great video Gary! Do you have a favorite ZF transmission?
Muchas gracias por tus video 👍
Thanks for the video! I am following this video to replace the oil pump for my 2014 RS7 transmission and having hard time sourcing parts like one time use bolts, seals etc. Which supplier(s) do you recommend?
Where are you located?
@@GaryFerraro Greenville, SC.
@@bmwerkeusa4910 1-800-388-4418
Eriksson Industries. He should have what you need. Speak with Nat
@@GaryFerraro Will do. Thank you so much Gary!
In the original bmw workplace manual for 8hp45/70 they diddnt say to replace the bolts only the sealant ring arount them how do u feel to use them again? I work on the same transmission for a project. And indeed some parts are difficult to find. Thanx in advance ur videos help me alot
I think you will be fine
Great videos like always. Which zf transmission are best .
I like the 6 speeds, they have common issues like they all do but the units don't really blow up, rarely have hard part damage
@@GaryFerraro thanks for quick reply. What like common issues they all have.
@@harvrindrsingh The 6 Speeds have rear stator bushing wear and solenoid problems
Any idea where i can get a spare clutch D hub shell from? Building an 8HP70 currently.
Never mind, Erikksons hooked me up!
Question for anybody knowledgeable here....sometimes my 8HP95 will shift from 2 to 1 while creeping forward after coming to a stop. The engagement from 2 to 1 is a very hard engagement. Speedometer reads around 1-2 mph when then happens. Is this normal?
hi, that's bad programming on the transmissions part had that aswell and chose to just remove 1st gear all together in software so it doesnt do that anymore.
What do you guys charge in labor for an 8hp70 rebuild? Im looking at buying a Suncoast stg 2 rebuild kit for mine. Thoughts?
@@upon1vp not sure what that kit consists of. Do you know what’s in the kit
@@GaryFerraro Raybestos Powertrain GPZ Frictions
Raybestos Powertrain Steel Clutch Pack Module
8HP70 Heavy Duty Drum
8HP70 Piston Kit
8HP70 Filter/Pan
Molded Valve Body Separator Plate
High Performance Overhaul Kit
This new SunCoast 8HP70 rebuild kit is manufactured using Raybestos Powertrain GPZ frictions. Raybestos Powertrain GPZ friction plates greatly increase transmission performance and durability. This state-of-the-art friction material far exceeds OE material to withstand high stress, high temperatures and repeated cycling. GPZ's outstanding performance benefits are perfect for heavy-duty vehicles and high-stress driving. Testing of GPZ revolutionary friction material shows that it outperforms OE materials by as much as 20%. Plus, its performance improves as the power increases.
This SunCoast 8HP70 kit also comes with Raybestos Powertrains's Steel Clutch Pack Module. Raybestos Powertrain steel clutch plates are high quality, application-engineered products at a price you can afford. Manufactured with attention to critical tolerances and quality control, our steel plates meet or exceed OE specifications and have a superior surface finish that supplies a greater apply area and friction clutch life. Raybestos steel plates give better shift performance and clutch durability, lowering noise and shudder, extending the life of your transmission.
Additionally, this new SunCoast 8HP70 rebuild kit includes an 8HP70 heavy duty drum, 8HP70 piston kit, 8HP70 filter/pan, molded valve body separator plate and a high performance overhaul kit.
This is everything you will need to do an upgraded rebuild on your transmission.
The gear ratio spread on this unit allows for you to be in a very healthy part of the torque curve at all times.
@@GaryFerraro tried posting a link...no dice.
@@upon1vp my e mail
Gsferraro@yahoo.com
@@GaryFerraro sent
Oh shit, this is the one I have been waiting for. 8HP70 and a 90 is what I want to see.
Not a bad unit to work on just parts are hard to ge
Hello Gary, thanks for this very interesting video. Nice to see how skillfully you work with these complex gears.
I also have a ZF automatic, I think the 45 (BMW F36)
I also have a problem with my zf automatic transmission.
As I roll the car towards the stoplight, I hear a grinding noise until I come to a stop. When I let the car roll towards a traffic light and I hear the noise and put it in neutral, the noise is gone. So it must be gearbox i think. It still shifts well, a little harsh at times, but they all have that in the long run.
What do you think, when you read my story?
regards.
Ok, Question, while standing still foot on the brake car in drive or reverse, do you hear the noise? if you do, when you put it in Neutral or park does the noise go away?
@@GaryFerraro no, I really only hear the noise when slowly coming to a stop at the traffic light
I have a 3-4 flare sometimes.. wondering if my D clutch is failing?
probably but also could be just that the clutch pressure adaptives are maxed and cant command more pressure a quick transmission readout software wise could help if the clutch fails the trans will throw a code since its super smart and knows if something is wrong
On assembly if you have the torque info this would help out a lot.
do you need any torque spec
@@GaryFerraro yes, what is the oil pump bolts screw in for the final bolts.
@@danrazumovsky The bolts that hold the pump to case?
@@GaryFerraro yes.
@@danrazumovsky ok, I dont have the info in front of me, but i believe it's about 50 Inch pounds then an extra 90 Degree turn. It's either 45 or 90 degree turn
What is the proper name for the rear seal connecting to the shaft
That is the Name, Rear Seal
nice
Gary, I just used your video to tear down and rebuild my hp70. When I installed it my dash cluster says its not in park and is in limp mode. Any ideas you could offer would be greater appreciated. Great video btw. Thanks
Did you hook up the park piston to the linkage inside the trans?
@@GaryFerraro yes sir
I also ohmed the solenoids and they are in range.
@@ronswartz3695 scan it for codes, if any clear them and see if it's ok
Ever had an 8HP70 with a harsh at times 2-3 shift?
I have had some with harsh downshifts, i reset the shift adapts and it fixed it
yup bad adaptives do that for you. reset, if its still happening a tune up on the transmisson will most likely fix that.
Can't believe they have that chain in there.
off axis pump, a lot of Transmission have that now
Great video, question for you. Where did you get that test plate?
The guy i was rebuilding them for had, i would think you could probably get them from the dealer
@@GaryFerraro thanks
So was it a 70 or 90?
This was a 70
@@GaryFerraro is the 8hp90 more different or almost the same?
almost the same@@240sxandcivic
Gary, quite recently we brought my 2016 1500 ram, with this transmission, into the shop because of a card in bike stokes sound when I hit the 30-40 mph range. It would go away upon manually shifting or putting it into neutral. To me, everything pointed to the MDS, even found a video that sounded exactly like the problem I had and it was the MDS.. So, they brought it in and said no, its the transmission pump.. its chain driven and when we put it up on the lift we can feel the pump shaking. But watching this video leads me to believe how could they feel the pump shaking especially where the transmission is on the dodges... they said when on the lift they replicated the speed and could see it shaking, could feel it shaking... nevertheless they diagnosed the problem as being the oil pump is shot. Is there any way that the chain can slack and cause a card in bike stokes kind of noise??
If it were pump you would hear it all the time, the pump is always turning. So you hear a noise in drive and reverse and goes away in park and neutral?
@@GaryFerraro So I only hear the "ticking noise" when I am decelerating and enter into the 40- 30 mph range... the sound will come and go. But if I use the manual shifters on the wheel the sound goes away.
No sound in reverse or in park.