4:10 diff question

[phucking-low]

I have a 91 318is 5 speed its a 4:10 rear end and it dosent have a LSD. I have a buddy with a 3:73 LSD rear end and my question is if i buy my buddies can i put my 4:10 gear on his limited slip diff?

[nrubenstein]

It'll cost less and take less effort to find a 4.10 LSD.

[phucking-low]

how will a 3.73 do im my 318is 4 cylinder

[Blackout]

how will a 3.73 do im my 318is 4 cylinder

Will make it slower.

[ANDRÜ]

Slower as in accelerate slower, but will have a higher top speed.

[phucking-low]

would i be right to assume that my 91 318is has a small case diff?

[nrubenstein]

Slower as in accelerate slower, but will have a higher top speed.

As if it could reach its geared maximum in the first place...

[nrubenstein]

would i be right to assume that my 91 318is has a small case diff?

Most likely.

[phucking-low]

So if my diff is a small case and i buy my friends medium case 3.73 and take the lsd out of it will it fit in my small case? Oh i will be taking my 4.10 gears off my diff and be putting them on the LSD. Will it work?

[phucking-low]

or will my 4.10 gear work un the lsd 3.73 diff?

[TobyB]

So if my diff is a small case and i buy my friends medium case 3.73 and take the lsd out of it will it fit in my small case?

umm... no.

or will my 4.10 gear work un the lsd 3.73 diff?

and... no.

Thou canst not cross thy cases. Shit just don't fit.

t

[Ryann]

As if it could reach its geared maximum in the first place...

My 4D m42 w/S4.10 could hit the rev limiter in 5th on flat ground.

OP: PM twistednut, he's running a medium case S3.73 in his 318is and can give you good feedback so far as performance is concerned.