diff what one do i need ?

[sid_taylor]

hello e30 wizards i have recently purchased my new e30 from a friend and being new to the scene i have a few things to get sorted so will probs be asking a few questions over the coming months.
firstly as you can see from the advert it has a welded diff... its doing my tits in as iam using it when home on leave. what diff can i get to replace it is it any e30 diff or does it have to be a certain one ??? any help would be great thanks in advance sid

http://www.e30zone.net/modules.php?name ... c&t=214886

[Sanchez]

All depends on the driving you like to do.

low ratio 3.64 better on the motorway as revs will be lower at higher speed.

higher ratio 4.10 will get you off the line better.

E30zone wiki is full of info,
http://www.e30zone.net/e30zonewiki/inde ... fferential

[Grrrmachine]

3.64 for cruising, 3.91 to get away at the traffic lights, 3.73 for a compromise. All need to be medium-case diffs to cope with the awesome power of the M20B25 engine

[sid_taylor]

cheers for replies dudes been a great help

[DanThe]

Is it a medium case already fitted? Where abouts are you I may be able to help

[macas]

What are you finding wrong with the welded diff?

Just curious to find out what people think of them for daily use!?

[Brianmoooore]

What are you finding wrong with the welded diff?

Just curious to find out what people think of them for daily use!?

There's no way the car can be legally insured is one rather important point!

[DanThe]

Just curious to find out what people think of them for daily use!?

The word 'ridiculous' comes to mind

[macas]

are they really that bad??
When i first got my e30 i wanted to get a welded diff because couldnt afford an lsd at the time.