what car does the 3.91 LSD come from? what is its torque limit?

[Rukus]

I have the 3.91 LSD and i was wondering what car it came from, or maybe if anyone knew its torque handling limit.

 

[bahnstormer]

the E34 525i has a 3.91 i believe

 

[epj3]

The 325is has the 3.91 lsd, and it probably came off of that.

My car has 167 lb-ft torque at the crank, so it's handling limit is WELL over 150 lb-ft.

 

[Rukus]

thanks man

 

[bluntheadtrauma]

The 325is has the 3.91 lsd, and it probably came off of that.

My car has 167 lb-ft torque at the crank, so it's handling limit is WELL over 150 lb-ft.

no it doesnt. if your cars a manual it has a 3.73. auto's had 4.10's. i believe 3.91's are a small case diff from a 318.

 

[Rukus]

Some 325is' came with 3.91 LSD from my research

 

[epj3]

Thankyou Blunt, you're right!

I do have the 3.73 final drive.

 

[bluntheadtrauma]

Some 325is' came with 3.91 LSD from my research

prove it to me and ill post a pic of myself with a sign that says " i am rukus's bitch"

 

[epj3]

Yea i only found 3.73's on the 325is (e30).

Could the e36 325is have a 3.91?

 

[bluntheadtrauma]

Yea i only found 3.73's on the 325is (e30).

Could the e36 325is have a 3.91?

its possible but ive never heard of an e36 3.91. obviously e36 cases dont fit in the e30 subframe anyway. i believe the 3.91 is a small case 318 unit and wont hold up to the m20 for very long. im not an expert by any means on e36's but i feel pretty confident in e30 knowledge.

 

[Rukus]

325ix have 3.91 LSD differentials.

 

[poboyis]

no it doesnt. if your cars a manual it has a 3.73. auto's had 4.10's. i believe 3.91's are a small case diff from a 318.

my car has 3.73's and its an auto

 

[nadroj]

i think the older e30 318's like 84-85 have the 3.91

 

[Rukus]

yeah they do. i am not sure if it was LSD or not tho... ALTHOUGH somehow for my 84 318i, i happenned to find a 3.91 LSD.