[cobrashoch]

Craig - The answer to your question is yes! yes ! yes !
I too have ran spools on the street in heavy cars. ( Chyrsler Hemi, 4200 lbs ) Never had any problems there either.
But a racing car in twistys is another thing altogether. Remember, you are reversing the stresses and forces in the opposite direction every time you decelerate and brake. Then you get on it hard and everthing stresses in the oppsite direction again. On a drag car and mostly on street cars the forces are in one direction. That working back and forth action is similiar to working a peice of wire back and forth till it gets hot then brakes in two. You do have light weight going for you though, and suspension compliance(slop)built into a cobra that will help. In that respect the tighter the car, the harder it is on something. In this case it's the axles. So I still think you are asking for axle failure. That's were they seem to brake, that and the U joints. The closest race car here in the states that is a aprox. match for a Cobra is a asphalt midgets. Those guys are mad dogs and do stuff that we would never do on a street car but maybe a few of them would chime in here, as that's what they do.
DV's True Trak is the hot shoe so I have been told from "several" local racers for cars like a Cobra. A couple of those guys I really trust. I am using a auburn locker and have never had a failure using them. I did have ring gear wear with a stock set of 456 gears a few years back, but that went away when I switched over to a pro gear. Be cool, till Later,,,,,,,,,,,,,,,,,,,,,,,,
cobrashock