LSD

Post Mon Aug 29, 2005 1:49 am

What should i look for?

Mine needs replacing..... it just went bang moving it off a ramp, another expense!!!

Whats the diffrent ratios? and what would be best for a 320?
Can i get a re-con lsd?

What sort of price should i pay for one? if i get a secondhand one how much would it cost to get it rebuilt?

Many Thank
Adam

Post Mon Aug 29, 2005 11:01 am

Is it a large case LSD?

It's impossible to guess at repair costs without knowing what's wrong with it, if it's only CWP failure, it could be cheapish to repair. (Ãƒ”šÃ‚£120 ish for labour plus the cost of an open diff for the donor CWP)

Does it not drive at all??

Post Mon Aug 29, 2005 11:21 pm

No doesnt drive atall, just a nice grinding from the diff ewww

Anyway will this fit my car?

http://www.e30zone.co.uk/modules.php?na ... ic&t=16054

How do i know if mine is a small or large case?

Picture of current Diff
http://img.photobucket.com/albums/v214/bradz/diff.jpg

Your help is mucho apreciated!

Adam

Post Tue Aug 30, 2005 10:08 am

please help!!

Post Tue Aug 30, 2005 10:09 am

If yours is a large case, any other large case diff will fit straight on!

Post Tue Aug 30, 2005 10:14 am

how do i know if it is a large case or not?

http://img.photobucket.com/albums/v214/bradz/diff.jpg

theres the piccy, hope that helps

Post Tue Aug 30, 2005 10:31 am

I can't tell mate.

Probably small if it's the original 320i diff?

Which means you will need to adjust the length of the prop.

Post Tue Aug 30, 2005 10:38 am

yes its the original one as far as im aware, so i need to get a 325i prop too then?

Post Tue Aug 30, 2005 10:43 am

i have a 325 prop if you need one

Post Tue Aug 30, 2005 3:46 pm

can someone tell me, if i go from my current diff on my 320 pictured above, to a 3.91 lsd, what will i need to do this?

Will i need a 325i prop?

Anything else?

Does the large case diff fit on the same mounts?

Post Tue Aug 30, 2005 4:33 pm

I'm sure this has been discussed a few times before on here, cant remember the exact details myself - try doing a search

Post Tue Aug 30, 2005 5:14 pm

spent 2 hours searching through posts on here, for info but couldnt find any

Post Tue Aug 30, 2005 5:38 pm

Info if you need to adjust prop here
http://www.e30zone.co.uk/modules.php?na ... ic&t=14103

Post Tue Aug 30, 2005 5:53 pm

You do not need a 325i prop as it won't fit. The 325i gearbox is longer.

You have a small case diff, the large case is beefier and heavier.

Make sure you get the output flanges with the replacement diff as large and small case flanges are not interchangeable.

To fit you'll nee to drop the exhaust slightly and remove the front heatshield. The prop has a nut rearwards from the centre bearing, loosen this and shove the rear half of the prop towards the front of the car as far as it will go.

Then fit the diff to the car, all the mounting pionts are the same. Finally tighten the prop nut back up (not too tight) and refit the heatshield and exhaust.

Cheers,

Iain T

Post Tue Aug 30, 2005 6:29 pm

There is a small case 4.10 LSD on ebay.

Karl

Post Tue Aug 30, 2005 11:12 pm

Templ8e30 wrote:You do not need a 325i prop as it won't fit. The 325i gearbox is longer.

You have a small case diff, the large case is beefier and heavier.

Make sure you get the output flanges with the replacement diff as large and small case flanges are not interchangeable.

To fit you'll nee to drop the exhaust slightly and remove the front heatshield. The prop has a nut rearwards from the centre bearing, loosen this and shove the rear half of the prop towards the front of the car as far as it will go.

Then fit the diff to the car, all the mounting pionts are the same. Finally tighten the prop nut back up (not too tight) and refit the heatshield and exhaust.

Cheers,

Iain T

You are the man!!! Thankyou very much i shall proseed to buy the diff, if i see you at a meet ill buy you a pint!!
Thanks