[commercialcobb]

These are some photo's of the rear end I siezed up running it without diff fluid. With further inspection, it seems as if the pinion bearing is what siezed. The gears appear OK to me. I posted the first thread in the wrong forum so I am bringing my question here. I need to know what kit I need (best bang for the buck) and what gears you recommend. It's is a 450+hp 429 with Tremec TKO-500 and had 3.50 gears in it. Now that the rearend most likely is damaged, should I stay with the 3.50 gears and also I don't think this is a "posi". I would love for you guys to give me some feedback on setup's you may have and which ones you liked/didn't like. Also, is a Posi Trac that important? I know thats a dumb question but this is not the ideal time for me to spend that kinda money..

Here's what I do know:
Ford 9" C7AW-E
31 Spline
1310 Yoke 3-1/4" (Measured accros the U-joint recesses)

I think it's:
Standard Pinion Support measured 3-1/2"
Trac Lock