hey guys im about to get my rear end rebuild with 3.73s. Should I upgrade to a 31 spline axle or keep the stock 28 spline axle?
I have that axle's twin in the scrap metal pile somewhere, if you want a matching set..........+1 no brainer... 31spline for sure you if plan on sticky rubber at the strip, especially if you've got some power. :yes
Heres what my stock 28spline looked like after a few MT ET Street launches..