New Diffff - United Bimmer Community

**215BIMMER535** · 08-20-2007, 10:29 AM

so i bought a diff out of a '95 M3 and swapped it into my car. what a difference. my stock unit had 2.93 gears and open differential. the new unit has 3.15 gears and the standard 25% lockup limited slip. feels like a big fat guy finally got out of the car. also the handling characteristics are much better now with the limited slip and slides are much more controlled. only raised me about 400 rpms at 80 mph!

**BaLAnCe17** · 08-20-2007, 10:53 AM

thats sick dude. how much did you pay for the Diff?

**94bmw325i** · 08-20-2007, 11:12 AM

+1 on where you bought it and how much please, im starting to look into getting parts for my auto to manual swap! Must be so much fun

**215BIMMER535** · 08-20-2007, 01:43 PM

well a kid i know has the 95 M3 it came out of (about 90K on it) and he swapped his out for an automatic one cus it has somethin crazy like 3.75 gears in it. i paid 230 for it which is a great deal from what i've seen on the internet. i had a tech at work install it for me while i was workin for 75 bucks. he said it was in great shape and my old one he took out felt real shitty when he turned it by hand. the mounting arrangement was different on the output shafts for the M3 diff but they output shafts were completely interchangable. just pop the old out, pop the new in. the whole thing was said and done in about an hour and a half. its noticeably quicker and no more peg-leggin!! one of the easiest ways to notice the limited-slip is the old scenario when its wet or somethin and u turn from a stop sign and kick it out a bit. stock this was pretty much impossible in 1st gear. yesterday it was raining and i crept out from a stop sign makin a left and punched it real quick and it swung out beautifully! (if thats what ur into, which i am haha)

**BaLAnCe17** · 08-20-2007, 02:16 PM

dont start sliding every where, i would hate to see that thing end up in a ditch...

http://s3assets.nextnewnetworks.com/354.jpg

**mullethunter3** · 08-20-2007, 04:16 PM

Definitely be careful with that LSD, whipping it around and everything.

On the Midwest Bimmer Festivus drive, my cousin, in a 95 M3, whipped it around a corner faster than he should have... he lost control and went completely sideways, coming about 2 feet from a curb at ~ 45 mph. Then he almost swung it into a ditch, then back to the curb, then ditch, curb, ditch, curb, ditch, then he finally gained control of it. Pretty scary, I was right behind him.

However, congrats on the LSD, have fun with it! (And a great buy! Damn!)

nick_318is · 08-20-2007, 06:24 PM

^Send him to a bmwcca school.

**Rooz** · 08-20-2007, 06:32 PM

Dude... +1 on the LSD.... I hate how BMW only puts them on the M's!

**BaLAnCe17** · 08-20-2007, 07:54 PM

^^^ jealous :P

i agree with nick too.

**xsperf** · 08-20-2007, 09:19 PM

Quote:

Originally Posted by Rooz

Dude... +1 on the LSD.... I hate how BMW only puts them on the M's!

for some reason my car has an LSD, and i doubt it isnt stock because my car wasnt previously driven by someone who modded it(as far as i know)

**215BIMMER535** · 08-21-2007, 10:38 AM

no worries i dont want it to end up in a ditch either!! means too much to me. plus tires get expensive quickly!!

**BMWALDO** · 08-27-2007, 09:35 PM

Congrats. Reading about your experience makes me happy. Haha.

Man I am really anxious to get my 3.23 lsd installed now. I can't wait to feel the difference.

**94bmw325i** · 08-27-2007, 11:34 PM

cars with the winter package I think it is have lsd's

witeshark · 08-27-2007, 11:48 PM

I'm sure it's been an option on most models, my BMW has it

**elsabor67** · 08-28-2007, 12:22 AM

Good switch man. I switched my 3.64 LSD for a 3.91 LSD off of a 325ix and the jump off the line and acceleration is awesome. Don't have too much fun with it