id say 4.11's with a 3000-3500 it'll be a little grumpy on the street but you say not to much street driving, or you could go 373's and a 2800-3200 stall. the 283's love deep gears trust me! try driving 4.88's and a 4500 stall on the street went and talked to the local rearend guy today the 5.13's are going in very soon! took the 4500 out last year in place of a 3500, putting the 4500 back in with 5.13's oh yeah it'll be fun.