i see a few people have done this themselves and that there are diffs you can buy but hardly low cost

im thinking of a sierra lsd chain drive has anyone got a how to section with pleanty of pics, loads of searches still havent found out how to do this

aitch

I have got one, but i brought mine from westgarage, see link below for photos.

http://www.locostbuilders.co.uk/viewthread.php?tid=126523

The one i have has a reverse attached, so unsure if you wanted one for road or track, if road then it would need a reverse to pass the iva.

You aren't that far away from me, more then welcome to pop along and have a look at it. But as you said it is not a low cost option.

An option i had thought of was to mount the bike engine like it would be in a 7, then use an adapter, prop-shaft to a normal lsd, then you have no conversion etc, but i am unsure if this is a suitable route, and i have not read of anyone else doing this.

[Edited on 22/12/09 by m8kwr]

I'm sure the ones I've seen have used the diff internals from a FWD transmission - Fiesta maybe? Mounted in some form of carrier frame.

You may find some useful info HERE, HERE or even HERE.

HTH

Neil

thanks to all
i dont have a lathe so its finding someone to do the work for me or buying

and i will need a reverse gear as will be just for road use

aitch

p.s. whe you look at the work involved the westfield units dont look that expensive, they dont seem to list with a reverse option though ??

[Edited on 22/12/09 by aitch]

You'll find a pic or 2 in my archive.

TBH I think you will be surprised at how the bits add up. By the time you've had a reverse gear & some spacers (to clear the chain) machined, & some bearing carriers. Bought some bearings & had all the other bits & pieces laser cut. Then you need a can which needs to be machined from a big chunk of ali + it needs a sealing cap machined to fit I'll be surprised if you've got much change from £500

I picked up a chain drive quaife diff/sprocket & pot joints for £350

I still need to resolve the reverse job which will add at least £120 on for a new starter, plus flywheel which will need machined to fit on the diff.

Without a lathe or friend with a lathe to remove those costs, like the previous post said the costs soon add up.

I anticipate spending £600-£650 to include the reverse gear /related machine work to bolt together.

I have still to corner my mate with a lathe to sweetheart him...

thanks again all
unless i come accross a friend with lathe looks like its another item ill buy off the shelf

aitch

Speak to Doug @ westgarage, minitici on here.

He would be able to sort you out.

If you wanted to see my unit from him, i am in stafford, not a million miles away from you.

Good luck with what ever route you take.