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Old 01-02-2013, 08:33 PM   #106
cooljess76
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Michael, you'll be fine. The Getrag bolts right up and is more than strong enough to withstand the added torque. You'll definitely want to run a 6cyl clutch and flywheel though.
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Old 01-02-2013, 09:32 PM   #107
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Yea I was planning next time when I replace the clutch to replace it with the 328 one even if I'm ok the the M42 at the moment, just to give me a better grip..

Thanks for the quick answer.. appreciate it!.. I'm dropping the idea of the 2.93 LSD and replacing it with the 3.25 LSD or 3.71 LSD If i'm lucky finding a good deal in any of them!
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Old 07-04-2013, 01:05 AM   #108
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What is the production month/year of the 318ti that this is going into?
1995, not sure of month

What type of transmission?
getreg 5 speed

Drive shaft came from what year & model car?
stock 95 318ti driveshaft

Diff. ratio
4.10

Diff. case size
Medium case

Diff. was taken from what year & model car?
taken from an e30 m30, not sure of year

What type of diff. cover?
stock diff cover

Diff. cover was taken from what year & model car?
n/a

Output flanges were from what year & model car?
stock output flanges, they were already on the diff, the kid said he pulled it out of the e30 m and didnt take anything off of the diff just changed the fluid.

Half-shafts were taken from what year & model car?
bought a brand new pair of 89 e30 rear axles

What modifications did you have to do?
had to notch a beam that blocked the diff from mounting To the car. The upper most bolts were hitting the beam. Less than a 1/4 in deep and 6 in long piece was cut out.

Have you had any issues with this combination?
Car runs great, the cv boots seem to rub against the suspension, not sure how to solve that problem yet, thoughts?

Misc. Notes
The stock bolts that connect the axles to the diff were to short for the new axles and diff, the bolts that came with the new axles were to long and to wide to fit through the duel bolt washers (dont know their technical name, sorry) that go between the bolts and the axles. So we had to go to a junk yard and pull axle bolts and duel bolt washers out of a e36 328i. With that hardware we could bolt everything up no problem. Any e36 non m should have the correct hardware.

Last edited by killergopher; 07-04-2013 at 01:08 AM. Reason: spelling corrections and spacing
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Old 12-01-2013, 02:07 PM   #109
samdemange
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hi,here it is my contribution for diff parts
litle case= 168 =4 bolts on flanges
medium case= 188 =6 bolts on flanges
those number corresponding with the diameter of the circlet in those diff
168 are mounting in 316i,318i,320i e30 and 316ti, 318 ti e36
188 in 323i,324td,325i, ix ,M3e30 318tds,323 ti
see board for e30 gear ratio
pic 143 188 3.07 323ti e36 diff
pic 144 188 3.73 325i e30 diff
Attached Thumbnails
Click image for larger version Name:	rapports de ponts BMW E 30.jpg Views:	356 Size:	32.4 KB ID:	14547   Click image for larger version Name:	pic00143.jpg Views:	314 Size:	54.7 KB ID:	14548   Click image for larger version Name:	pic00144.jpg Views:	293 Size:	89.9 KB ID:	14549  


Last edited by samdemange; 03-31-2016 at 07:13 PM.
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Old 12-05-2013, 08:28 PM   #110
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Will the LSD from 323ti fit into 318ti (is it straight plug and play) The 323ti LSD is medium case diff, so I consider I will need also 323ti halfshafts, am I right?
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Old 12-06-2013, 12:22 PM   #111
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Quote:
Originally Posted by Bloo View Post
Will the LSD from 323ti fit into 318ti (is it straight plug and play) The 323ti LSD is medium case diff, so I consider I will need also 323ti halfshafts, am I right?
yep u right
but the 323ti diff dont have a LSD (its a ASC/T system)
and the gear ratio is 3.07 ( too long )
its why i put a 3.73 e30 diff with a LSD on my car
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Last edited by samdemange; 12-06-2013 at 01:54 PM.
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Old 06-10-2014, 07:08 AM   #112
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My diff; late 95 318ti, had to put a thumb size dent in the crossmember, nothing more, for clearance.

Medium case from an 88 325. Gutted it, started over.

4.27 ring and pinion from an auto trans 525i. I refused to pay 1400 for a set of "motorsport" gears when these are a dime a dozen in the euro junkyards.
Bought the whole diff for 150.

Helical M-Z3 center. Ebay. 500 bucks, Nearly new.

M-Z3 Cover

New (not reman) e30 6 cylinder C>V shafts.

Rebuilt with all new bearing, ditched the speed sensor as the shop mixed up the tone rings and didn't know which one went in. After trying 3 different sensors I said screw it.
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Old 10-14-2014, 04:08 PM   #113
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Great info every one. My 97 ti came with an extra diff that is a small case LSD. I swapped it in yesterday. Direct swap, same ratio no install issues. BUT, when I test drove it, I experienced a lot of wheel hop on launch (2500 RPM, dump clutch, smash gas). Is this common? The diff has a polyurethane bushing, suspension is Bilstein HD shocks, H&R sport springs, stock RTAB (new) and polyurethane subframe bushings. The rear tires are not performance (kuhmo Ecsta w/ 600 treadwear rating). This is the way I bought the car. It also came with a set of R compound tires on 16" wheels. It rides/drives great. Any way to eliminate wheel hop?
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Old 02-25-2016, 05:43 AM   #114
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I just picked up a 98 with an open diff (I assume it is the stock 3.45.) I have a small case 4.10LSD from an e30 sitting in my basement. I have helped a friend put a medium case in his ti, and did it the proper way with e30 axles. From what I understand, the small case is a direct swap and will fit with the ti axles, correct?

I'm still going back and forth on whether it is worth it, as it is a daily driver and I almost have my e30 back on the road with an s50 to be the fun car. I'm wondering if anyone has input on how drivability is affected with 4.10 gearing. I know my highway rpms will go up, but the car will be used mostly around town anyway. Is first even usable or will I essentially have a 4 speed?
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Old 03-31-2016, 05:46 PM   #115
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I have a question for the gurus. I have a complete rear subframe from a Z3M that has a 3.23 LSD. From what I understand that's higher than what the car has in it now, '98 w/5-spd. I can purchase a 4.10 from a Z3 coupe. Is the 4.10 to much for a 4 Cyl. track car?
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Old 03-31-2016, 10:34 PM   #116
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Quote:
Originally Posted by M GmbH View Post
I have a question for the gurus. I have a complete rear subframe from a Z3M that has a 3.23 LSD. From what I understand that's higher than what the car has in it now, '98 w/5-spd. I can purchase a 4.10 from a Z3 coupe. Is the 4.10 to much for a 4 Cyl. track car?
It would accelerate faster, but would be screaming at high speed. I guess the question is how fast you plan to go?
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Old 03-31-2016, 11:10 PM   #117
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Going to be a dedicated race car. Top speed not as important, getting off the corners hard would be better.
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Old 11-08-2016, 02:01 AM   #118
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I just picked up a 96' auto... I know, it's an auto, ugh, but it was also practically a steal.

The gentleman I bought it from stated it had a 4.44 LSD, but wasn't sure what it came out of.

Does this sound correct to anybody? it seems awfully low for an auto.
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Old 11-08-2016, 04:58 AM   #119
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Quote:
Originally Posted by Kuluvu View Post
I just picked up a 96' auto... I know, it's an auto, ugh, but it was also practically a steal.

The gentleman I bought it from stated it had a 4.44 LSD, but wasn't sure what it came out of.

Does this sound correct to anybody? it seems awfully low for an auto.
Yes, that's correct. It came in that there TI stock. A small case
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Old 12-26-2019, 11:28 PM   #120
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I just swapped a medium case LSD into my ti, I used a 3.25lsd from a 1984 E28 524td. I used an E30 rear cover and reused my stock ti output shafts. They will work, but they do not fit correctly into the medium case diff, if I had realized they would be this bad I would have done the E30 halfshaft swap. The diff has little rings in it that snap into a grove cut into each output shaft, and to get the ti shafts into the medium diff far enough to work you have to push them past the point where they snap in. There is nothing really holding them into place in this position, but once the diff is in the car and the ti axles are bolted up there physically isn't room for the axles to pull out far enough to cause damage. I don't think the axles have a lot of extra travel in them, but it's hard to tell. I do worry that there is the chance of binding, but again I don't have a way to tell, we will just see how long they last.

Getting the medium diff into the car is tricky too, the vent and top couple bolts on the rear cover are very close to a rear crossmember, and if you don't push the back of the diff into position first it will hit and won't fit. With it all bolted up the tabs that grab the rear mount appear to be in constant contact with the rear cover. I am getting more diff noise in the cabin than before, but I made some other changes at the same time so it might not be just the diff. Exhaust and suspension were replaced too. At some point I'll probably drop the diff again and grind those tabs back so that they have more clearance.
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