[Anthony]

I had thought that all of the small block cobra's with statrdard trannys had BW T-10's. I had thought that all the big block cars, except the two with auto's, came with CR toploaders, and none had WR toploaders.


If you have 3.54 rears, then I'd get a CR toploader. I ran 3.07 rears with the WR toploader, and it was fine, and maybe better with 2.88 rears. 3.31 rears may be better with CR toploader, but alot of people with WR toploaders run this rear as well.

If you consider the CR toploader ( 2.32 1st) with 3.54 rears, as the standard to be compared to, comparing overall gearing in 1st gear, with the WR toploader (2.78 1st) you'd have to run 2.95 rears to be equivalent, for hole shot purposes.

The WR tranny with 3.07/2.88 rear gears is a great combo for the street, still good holeshot, and lower rear gearing for better cruising, but the disadvantage is the gear spread is wider, about 250 rpm greater between shifts, which doesn't sound like much, but I think it does make a difference, at least in racing.