Had a thread on this last year but didn't want to go dig it out again. I am getting ready to replace my spool and 4:56 gears in the Savoy with a differential and some higher ratio gears (3:91 or 4:11s). What type of differential would you all recommend? I am thinking either Powertrax or a Detroit. The car is heading towards more of a pro street than a strip car but will see some occasional track time.:confused:
