If you can spring for the $1k WaveTrac it's supposed to be nice. You can get it in 35 spline for the 9". Not a lot of "real world" info on this diff since they are relatively new. Come with a lifetime warranty. I've heard of one broken unit so far but no update yet on whether it was warrantied or not.
Otherwise, the TrueTrac seems widely used but is limited to 31 spline size in 9". If you are drag racing, and hooking up, that 600 RWHP is near the limit as I understand it.
John
__________________
John
'71 Nova ( Build thread)
FFR Roadster
|