welding diffs??????

[mgglep]

Hi All
i have a couple of spare diffs that i have aquired along the way. i would like a diff that i could "play about in" but dont want to spend the hundreds of pounds for a decent LSD so my question is what are peoples thoughts on welding up a diff so it is locked?
I have a spare 3.92 diff, i have welding equipment and it will be relatively simple to shange the diffs depending on what i am going to do with it

[jps]

I think the point of an LSD is that it is locked sometimes - but not all the time? Surely a car with a fixed rear axle will be difficult to drive in most conditions and you'll get more grief than benefit from it?

[Oscar]

The point of an LSD is it acts as a locked (welded) diff until the point where the wheels of a welded diff would start "skipping" round a corner, when the limited slip is allowed to maintain traction.

In terms of welding a diff; if you've got a use for it then have a go! Welded diffs are very useful for things like autotesting and drifting. No good for road driving though (like sitting on a kangaroo round a roundabout!)

[mgglep]

I understand the benefits of an LSD and yes in a perfect world i would go and buy one but for a decent one for autotesting etc they are expensive, as i believe even a standard LSD from a cossie you would find it difficult to break the back end away. i would use a road diff for road use etc and change to the locked diff for the sliding i would need to do
i intend to use the car for hill climbs, autotests, auto solos etc etc the truth be known probably more than road use.

[flyerncle]

Welded diff wil give you loads of oversteer,had a Quaife one in a roadster with close ratio Quaife box and oversteer was a handfull untill you got used to it and it was a Saturn chassis made with 2mm box section and quite stiff.

If you do weld it use the right rods or the stress on the planet gears makes them go bang (dont ask how I know).