have a 83 camaro 3:23 carrier 4:56 gears anything i can do to beef up rear axle swap years ? change carriers? spool it? do mini spools work with drag cars will a 7 5/8 fit?help dont have the money for a twelve bolt whats up with 9 bolt?

 

mini spools are for dirt tracks. 7.5 and 7.62 are the same, for increase in strength go to 28 spline axles, girddle and weld axle tubes