wgc_3

I have to replace the differential on my '82 because it won't come close to holding the hp, I need it to, some one told me to get it from Tom's Rear Ends, but honestly I know nothing about differential’s other then what posi track is. Could someone explain to me what I will basically need, and any options you may think I need, also can you recommend gears. I will be running close to 1200 hp if that helps.

:shocked: :confused: :shocked: :confused:

Thanks,
Bill

Master Ho

1200 hp? RWHP? If so, how about a 9" Ford?

Gordonm

At 1200 HP about the only thing that will hold up is a solid axle. I agree a 9 inch Ford would be the best. Toms has something that will hold up but hold on to your wallet. It is expensive.

GrandSportC3

Ford 9 inch with a spool is the only way to go with that kind of horsepower... You'll also need 40 spline axles... I'm going to have a Ford 9 inch installed on my '68 and I will be running a detroit locker differential... I don't know if a Detroit Locker will be able to handle 1200 HP with slicks... A spool will handle it easily.. but reduces drivability!!

There's no posi that I'm aware of that would hold up to 1200 Horsepower...


[Modified by GrandSportC3, 9:53 AM 4/25/2004]

wgc_3

It's about 900, out of the flywheel, with a 300 shot of nos, help any?

Also does anyone have any pictues of how you might set up a 9" on a vette?

wgc_3

Also this company claims that their half shafts, and their drive shaft can hold it, so there has to be a differential that can? Or am I still wrong, adding a 9" sounds like more of a pain with alot of welding, then just replacing all the parts, but I think if there was a picture then maybe it might help if anyone has one.
http://www.dennysdriveshaft.com/html...dent_rear.html

Thanks,
wgc_3

Guru_4_hire

Check out toms differentials

Gordonm

What are you going to do with this car. Drive it on the street or is it a race car primarly. I don't know the rules off the top of my head but the IRS setup is not allowed below a certain ET. You have to go to a solid rear. If the car is street driven with some drag strip the IRS is going to be the weak link but a little more streetable.