V6 (1994-2004) MustangsTechnical discussions on the 3.8L and 3.9L V6 torque monsters Sponsored by Optima Batteries
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So... after a racing incident today, I've decided that my open differential is crap... I want to do an 8.8" and am wondering a few things... 28 or 31 spline axles? and how hard is swapping my 7.5" out for an 8.8?
Thanks for any help...
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if you can find an 8.8 for $200 or under then it's worth it. other than that the detroit truetrac in a 7.5 is stronger than a stock 8.8.
all 94-04 v6/GT stangs have 28 spline axles regardless of 7.5 or 8.8 they are exactly the same axle according to year. 94-98 are the same length and 99-04 are the same length axle. 94-98 axles are shorter than 99-04
98 3.8L 11psi P1SC Procharger,97 junkyard engine ,3.73`s,7.5 Detroit Truetrac,TA rear girdle,B&M shift kit,2500 stall
mods to complete
8.5:1 ross .030" pistons,Eagle H-Beam 351W rods,Comp cam 224/236 .569"/.578" 112* lobe sep,Rhodes variable duration roller lifters,Pro-M Univer MAF,siemens deka 60lb injectors, upgrade to D1@20psi,Delk Main Girdle and Main studs, Head studs,Comp 1.7 roller rockers, home ported heads CFM 216/196,PI 3500 stall
you can't just buy an 8.8 differential and try to put it in your rear. your rear is a 7.5. you would need the entire complete 8.8 rear from end to end. that differential won't fit in the rear that's on your car
anyways i wouldn't pay 10 cents for an 8.8 track lok used from 1993.
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