[Thor06]

Wow, thanks guys. Clears things up a lot for me. I knew a welded diff would be bad, but TRE's site didnt make it sound too bad. I had to push my dad's racecar with a welded rear diff, I figured it would suck with all four wheels like that. So the 4 spider one will hold more power eh? Sounds like that is what I will have to do. I guess I am thinking the stock tranny will go back in for this summer once I get the rebuild done so I can drive it some then next winter I will pull the tranny and send it off to have it rebuilt. This summer shouldnt be out of the tranny's reach, its the nicest 1g tranny I've ever driven (shifts good, no grinds at all, etc) and I shouldnt be putting down that much power anyway.... kinda limited to the Big 16g until I get support mods done.

I have one more question. What is it about a tranny that gives it its ability to shift at higher RPM's? I have only missed a gear once in the purple car, a 7k shift to second. I was wondering because on the Dog Box site it says their race rebuild can withstand 9k shifts which is sorta what I want to build my car to take (whether it sees that or not isnt sure, but sure wouldnt hurt to have the ability right?). Well, the "race" rebuild from Dog Box doesnt seem to have much for aftermarket parts and it says they are proven to over 500 ft lbs and over 9k shifts. Would just having new syncros do that, or is it the combination of new gears, and hub and sleeve deals along with the syncros that do it? Again, thanks for the replies guys, trannys arent something I have known too much about.