Point taken pro-240c, I thought he was looking for a budget application for the street.
I was mainly talking from all my experience with diffs in competition rallycars not big dollar drag build ups where I have no experience. Very dependant on the application I guess.
I can understand the use of a spool for drag applications - live and learn

thanks guys for such great replys.
Yes this is for a street car
Yes hopefully it will see the track sometimes
No its not a full-on dragster

after much thought and crap i have come to the same conclusion i have started with......i cant have an open wheeler but dont want a locked diff... so i need an LSD. and with the option of VL and thoes other falcon LSDs im sure i should be able to find a relativly cheap one.
Any hints on where to look.....or anyone got one they wanna sell me?

Thanks again
Elliott

Quote:

well said, i agree 100%

And to who ever asked about the axles, they will break alot easier with wide/tall tyres on the car than they would with standard/skinny tyres.

my mate has a mini spool centre in his r31, performs just the same as a welded diff but less chance of breakage. Go for the mini spool they dont cost much.

I dont understand how you can say less chance of breakage. People go on about metal properties and how the heat effects the gear metal. How many of you have actually welded a diff let alone driven a car with a locker? Would be interesting to know.
If you can weld properly and get good penetration with the weld, there is no reason the welds will break. You only need to weld in all four corners on each side. That means there is eight welds plus the gear faces that are still touching, taking all the load.

Tailshafts are made of thin tubing and are welded at each end to a uni. Do you think a tailshaft maker is going to heat a sealed airtight tube to condition the metal? So how does the thin tube right next to the weld that has had its properties changed as a result of the welding survive the twisting torque applied to it.

I know and understand about metal properties, but to say " If you weld a diff, It will fail." Is bull.
Bridges are built out of metal everyday. Structural welds are done on them everyday. Do they heat treat those welds?


At the end of the day. For a street driven car any form of locked diff is only fun for spinning 2 wheels.