Part 16: 🔧 How-to 🚗 build your E30 Differential From Start To Finish! A complete guide!

If you're interested in having me rebuild your differential, click here to find out how!
garageaholic.build/product/18...
Today, we change out all bearings and races, seals, rebuild the clutch pack with a 3-clutch set, zinc coat all parts, polish, paint, gear swap, and install a semi-polished aluminum Z3M differential cover.
The 3 clutch kit: racingdiffs.com/products/bmw-...
Garagistic 2nd ear kit: www.garagistic.com/products/e...
The bearings/Seals Kit: racingdiffs.com/products/bmw-...
E30 Pinion/Carrier Shim Kit: racingdiffs.com/products/bmw-...
Pinion Clamp P/N: 33121744368
This is essentially a BMW E30 Enthusiasts dream differential!
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www.garageaholic.build
E30 & E36 N54 Swap Guides available for purchase!
garageaholic.build/product-ca...

[@aarondavidsmith208]

I'm impressed! You know your stuff. I've rebuilt a few 188mm diffs but it's few and far between so I always come back to TH-cam to refresh on some specs. I subscribed to your channel. Looking forward to checking out more of your content!

[@Garageaholic]

Thanks Aaron. i do a lot of engine swaps!

[@aarondavidsmith208]

@@Garageaholic Sweet! I have a m50 swapped e30 and just and just did a e28 m50 swap. Sold that one a few days ago. Next is s52 in my e34 touring!

[@anilec333]

Easy to understand! I am gonna order the tools and kits! Since I replace new cv(expensive gkn) and the Z3 lsd ( the diff seems really need to rebuild! Thank you sir!

[@sats7819]

Legend

[@spencermaiers8322]

Obviously a bmw diff master. Love it. Thanks for the education, very impressive and very nice work and explanation. I bet you've done 3 dozen or more.

[@Nico_335i_DCT]

Great rebuild, Frank. Very interesting. Thanks for sharing and have a good one. Regards Nico.

[@2ndProtects1st]

Nice always good work!!

[@kujtek]

i believe lsd should be maintained with 75w140 not 75w90, check it before clutches will be burned

[@spencermaiers8322]

Usually I fill mine with Wesson. Available at most maor food retailers.

[@davejohnson3474]

Yeah 75w140
75w90 is gearbox fluid.

[@Czechmate_e30]

YES! Great video. Always loved your stuff.

[@philchris5003]

Hi, backlash isn't too short ?

[@bishopuu07]

Thank you

[@polloloci21]

Did you add a gasket to the diff cover? Looks like you only used permeated (or something similar).
Thanks

[@Bob-Sacamano]

Thanks for the video. I've done a bunch of Dana, GM, Ford diffs before so I'm pretty familiar with the rebuild and regear process but this one is strange to me so I have a few questions.
Are there no shims for the pinion side? If not, how do you adjust pinion depth to get a proper gear pattern?
Also the backlash seems very tight. Most diffs I've built are typically in the range of 0.006-0.010". What is the recommended range for a BMW 188mm diff?
Thanks.

[@galantecdn09]

hi, I have a diesel e30 with an e46 M57D30 engine and I have a problem, the car only gives 74 miles when it was supposed to give at least 149 miles, I was told that the problem was the differential, what can I do to change this without having to apply the e46 differential?
Can I build a differential with the E30 body but with the E46 interior like in this video?