M3 Differential 4.10 DIY needed

rcrescencio · Thu, Apr-05-2012, 02:08:01 AM

Can anyone guide me to a ring & pinion change on an e46 M3 differential? Buying the R&P is one of the easier steps. Finding all that I will need, seals, bearing, etc. Their part numbers and where to get them is not so easy. Finally, understand what's involved and the tricks necessary to do the rebuild, a DIY is just about impossible to find online.

I have purchased a used diff and the R&P. I would like to know what else I need. My plan is to change the diff and include a 3-clutch w/ variable ramps. I just think the $4k+ the market is charging is a bit overpriced.

Can anyone help?

Tarmac_E36_M3 · Thu, Apr-05-2012, 02:14:16 AM

It's really hard, from what I've read. Which is why there are shops dedicated for this kind of stuff.

I would buy the parts then just take it to a good diff shop and have them do it. I think it costs like $280 to get my 4.10 put in, plus whatever the parts were to fix my leak.

rcrescencio · Thu, Apr-05-2012, 02:28:30 AM

I'm trying to get the full list of parts, that's prob. #1. Any idea? Also, where can I buy a 3-clutch LSD w/ variable ramps?

natty99 · Thu, Apr-05-2012, 02:42:18 AM

I've got brand new carrier bearings if you're interested

OptionLessM · Thu, Apr-05-2012, 03:30:53 AM

I wouldn't recommend doing it yourself unless you are extremely patient AND experienced. There is a good bit of precision involved.

EricSMG · Thu, Apr-05-2012, 04:01:27 AM

Quote:

Originally Posted by rcrescencio

a DIY is just about impossible to find online.

That should tell you something.

Coinage · Thu, Apr-05-2012, 04:07:14 AM

http://www.m3forum.net/m3forum/showthread.php?t=389657

rcrescencio · Thu, Apr-05-2012, 12:17:12 PM

Quote:

Originally Posted by OptionLessM

I wouldn't recommend doing it yourself unless you are extremely patient AND experienced. There is a good bit of precision involved.

I have a friend who is a mechanic. He's going to do it, not me. But before I can have him do it, I need to have the parts and would like to learn it myself. He has done diffs, full transmissions, and not the least installed an LS1 into an E36 M3 - No small feat there. I trust he is very good around a car.

rcrescencio · Thu, Apr-05-2012, 12:21:11 PM

Quote:

Originally Posted by EricSMG

That should tell you something.

It just tells me no one has taken the time to do one.

Or don't want to share the "secret".

djm3 · Thu, Apr-05-2012, 12:36:03 PM

Be the first!

Thu, Apr-05-2012, 02:14:16 AM	#2
Tarmac_E36_M3 If it ain't lightweight, it ain't the right weight. Join Date: Jul 2011 Posts: 3,002 In the garage: '95 BMW M3 '03 BMW M3 Reputation: 0 Location: LA/OC/SD	Re: M3 Differential 4.10 DIY needed It's really hard, from what I've read. Which is why there are shops dedicated for this kind of stuff. I would buy the parts then just take it to a good diff shop and have them do it. I think it costs like $280 to get my 4.10 put in, plus whatever the parts were to fix my leak. __________________ Current: 1969 Ford Mustang Coupe; 351w (5.8L) carb engine; Champion 4 row radiator; Edelbrock Performer RPM Intake Manifold; Edelbrock 750 CFM Carb; 15" Cragar Wheels; 215/60-15 front tires, 255/60-15 rear tires; Doug Tri-Y Headers; Custom 2.5" Dual Side Exit Exhaust w/Xpipe; MSD 6AL; Electric Fuel Pump; March Performance U/D Pulley Set; Monte Carlo Bar; 3200 lbs. 1995 M3; single 3" exhaust after cats; CF hood; Apex ARC-8 17x9" wheels; Conti DW 245 square; BC Racing Coilovers. SOLD: E46 M3 SMG; Intrax coilovers; ACPT CF DS; SS V1 Headers/Section 1; Zionsville Type 17 kit; VAC Ultra light pulley set; BMW MS 4.10; Evolve-R Tune; 2980 lbs.

Thu, Apr-05-2012, 02:28:30 AM	#3
rcrescencio Registered User Join Date: Apr 2010 Posts: 90 In the garage: '03 BMW M3 Reputation: 0 Location: Cary	Re: M3 Differential 4.10 DIY needed I'm trying to get the full list of parts, that's prob. #1. Any idea? Also, where can I buy a 3-clutch LSD w/ variable ramps? __________________ Brembo 355/345 \| PFC 01s \| TCKline Koni D/A-Front S/A-Rear 500/600 \| Vorshlag CP UUC Sway bar \| Recaro PP \| Schroth harnesses \| Volk TE37 9.5x18 \| 4.10 diff subframe reinf plates \| Continental Race Slicks \| AiM Pista \| Adjustable AL rear lower control arms \| Bimmerworld Race exhaust \| 1 slow poke in-training . In-Progress: guibo, drive shaft bear replacement. Coming soon: Sunroof Carbon Fiber install, front brake cooling ducts install. Wish List: Autosolutions SSK, Aeromotions Rear Wing, front splitter, HANS

Thu, Apr-05-2012, 02:42:18 AM	#4
natty99 tryin' to stay classy Join Date: Sep 2008 Posts: 5,503 Reputation: 0 Location: NYC	Re: M3 Differential 4.10 DIY needed I've got brand new carrier bearings if you're interested __________________ 2005 BMW M3 ZCP 6spd, black on black ENGINE: aFe Dynamic air scoop \| DINAN TBs \| VAC Motorsport pulleys EXHAUST: SS Stepped V1 Headers \| SS race cats \| SS resonated X-pipe SUSPENSION/CHASSIS: Moton Street Sport S/A coilovers \| Hyperco 450/550 \| GC Street camber plates (-2.4F) \| GC RSMs \| RE weight jacks \| TMS RTAB limiters \| TMS RCAs (-1.4R) \| Mason Engineering Race FSTB \| OEM front strut tower reinforcement plates \| TMS rear subframe reinforcement WHEELS/TIRES: Volk TE37s in gloss white, 18x9.5 +22 (F) 18x10.5 +22 (R) \| Michelin PSS 245/40 and 275/35 DRIVETRAIN: 3.91 BMW Motorsport SHIFTING: AS 30% SSK \| Illuminated ZHP \| RE tranny mounts \| GSP clutch pedal with UUC bushings \| UUC "big boy" clutch stop \| CDV delete \| TMS SS clutch line BRAKES: Stoptech SS lines LIGHTING: Lightwerkz TFX retrofit \| Digital 55w 4300K HIDs INTERIOR: Euro first aid storage boxes

Thu, Apr-05-2012, 03:30:53 AM	#5
OptionLessM Obliging Join Date: Jul 2008 Posts: 1,897 Reputation: 0 Location: Poorifornia	Re: M3 Differential 4.10 DIY needed I wouldn't recommend doing it yourself unless you are extremely patient AND experienced. There is a good bit of precision involved. __________________ There is no need to be upset...

Thu, Apr-05-2012, 04:07:14 AM	#7
Coinage Registered User Join Date: Oct 2009 Age: 25 Posts: 1,302 Reputation: 0 Location: Harrisburg/Hershey	http://www.m3forum.net/m3forum/showthread.php?t=389657 __________________ 02 M3 JB/IR VF StageX-V2 T-Trim,16psi,Direct Port Meth Injection,Walbro 255 Intank,Walbro 255 Inline,-8 Fuel feed, 750cc Injectors 550whp, before tuning SuperSprint V1 stepped headers/Sec 1,AA Gen 3 Muffler Brembo Monoblock 6/4,TCK D/A 500/500,Turner sways,VMR V718,TMS Solid Camber Arms ClutchMaster FX700 twin disc clutch,VAC Solid Diff Bushings, Solid Sub Frame Bushings, AS SSK Coming Soon: 18x9.5/10 Apex ARC-8, Drag radials, Custom Sec 2 03 TiAg/Black SMG- SOLD 03.5 SilverGrey/Imola SMG- SOLD FOR SALE: GT1, Resurfaced Flywheels, S54 head PM for details Performance Installs,Maintenance,ICOM,Engine Builds,Diff Installs,Tool Rentals

Thu, Apr-05-2012, 02:08:01 AM	#1
rcrescencio Registered User Join Date: Apr 2010 Posts: 90 In the garage: '03 BMW M3 Reputation: 0 Location: Cary	M3 Differential 4.10 DIY needed Can anyone guide me to a ring & pinion change on an e46 M3 differential? Buying the R&P is one of the easier steps. Finding all that I will need, seals, bearing, etc. Their part numbers and where to get them is not so easy. Finally, understand what's involved and the tricks necessary to do the rebuild, a DIY is just about impossible to find online. I have purchased a used diff and the R&P. I would like to know what else I need. My plan is to change the diff and include a 3-clutch w/ variable ramps. I just think the $4k+ the market is charging is a bit overpriced. Can anyone help? __________________ Brembo 355/345 \| PFC 01s \| TCKline Koni D/A-Front S/A-Rear 500/600 \| Vorshlag CP UUC Sway bar \| Recaro PP \| Schroth harnesses \| Volk TE37 9.5x18 \| 4.10 diff subframe reinf plates \| Continental Race Slicks \| AiM Pista \| Adjustable AL rear lower control arms \| Bimmerworld Race exhaust \| 1 slow poke in-training . In-Progress: guibo, drive shaft bear replacement. Coming soon: Sunroof Carbon Fiber install, front brake cooling ducts install. Wish List: Autosolutions SSK, Aeromotions Rear Wing, front splitter, HANS

Thu, Apr-05-2012, 12:36:03 PM	#10
djm3 CSL (finished) inside Join Date: Aug 2008 Posts: 3,739 In the garage: '05 BMW M3 Reputation: 0 Location: HeArT of DiXiE	Be the first! __________________

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