Changing diff ratios

[Team Zee]

Hey guys

I got a 316 body e36 BMW with a 2jz gte motor and gearbox and i use the car for drifting.

My problem is i need to change the diff ratio from a 3.38 to a 4.1 or 4.4. That is the origonal ratio that is for the 2jzgte set up.

My problem is when i get to 3rd gear i am out of boost and the drift stops so with a better diff ratio my speed will be slower but i will be in boost.

I went and bought the diff that came out of a 318i auto which is 4.44 but the diff is small and does not fit the side shafts and prop shaft.

Any help on where i can buy a diff that will fit in my e36 or where i can get the ratios i would greatly appreciate it.

Regards

 

[Nuts4wheels]

Hi

I dunno if you gonna come right with these guys but they have a variety of BMW Diffs available. Japan Auto 011 397 6789

 

[Crash_Nemesis]

Might need to take the internals from the 4:44 and install them in a bigger diff housing.

 

[Team Zee]

Can it be done to take the internals out the small diff and put it in the big diff?

 

[Crash_Nemesis]

Not so sure you can. I would speak with Gizmo and he can confirm.

 

[Gizmo]

I can build up a 4.10:1 E36 medium case diff for you, R3k.

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E36 316i manual came with a 3.46 and not a 3.38 btw.

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Can it be done to take the internals out the small diff and put it in the big diff?

No.

 

[moranor@axis]

the 4.44 ratio was also not build to take high power or torque...

I think your best bet is to modify the rear to accept a 4.44 from a Jap car this will also open up many LSD options...

 

[Team Zee]

Thanks for all the help.

Gizmo just sent you a pm.

I intend to lock the diff better for me for drifting i only use the car for drifting.

Once again thanks for all the input. I hope i come right with Gizmo.

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Is there anyone else on the forum that does drifitng that i can share ideas with and chat with?