Post by
WDRacing »
https://forums.nicoclub.com/wdracing-u3125.html
Sun Jun 08, 2008 4:32 am
People have been running over 500 on the KA transmission...BUT...if you're drag racing and launching on slicks you'll need a new D/S possibly axels and the transmission won't last long either. It really depends on the load being applied.
For an affordable swap just use a T56, for the manual or a TH350/400 for an auto. You will need an adapter place, but I'm pretty sure someone has a jig for it already.
I'd run the KA transmission into the ground first though. Obviously this isn't your daily driver right?