Need your opinion please

[olddog]

http://www.clubcobra.com/photopost/s...4/ppuser/24683

This picture is of a dirt track car's transmission explosion. The 9" rear end was not installed properly and allowed too much travel. Coming out of a corner the u-joints could not handle the travel and bound up. Engine was at about 400 hp - 450 tops.

My Cobra has a 9" in it. If I jack it up by the frame, the axle will drop far enough to bind up the u-joints. I wouldn't want to launch it off the ground. I don't worry too much, as I drive like an old man on the streets. I may well put an IRS under it some day. That or a different car.

IRS is the way to go, but which IRS. The Jag setup where the axle forms one of the control arms, does not look like a good design. They rarely brake, but when it does, it is going to be ugly.

It's late. I didn't take the time to figure out how to post the picture into this thread. If someone knows how, feel free to do so.