8.8 vs 9"
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8.8 vs 9"
i am running 39.5" trxus on my 90 f150 (i know the TTB cant handle that, thats why i am putting new front and rear axles) and am needing to know if i should put the 9" rear end out of an early 80's f150 on my truck or if i can safely keep the 8.8" i have now. i dont do any rock crawling, i live in louisiana, just run in the mud evey now and then, but i want to lock my rear end and run 456 or 488 gears in both dif's. will i kill the factory axle? thanks guys.
justin
p.s. i don't really want to go to 1 ton axles because i bought wheels without any forethought. i only have a 302, which will be replace by a (slightly) built 351 eventually so i am not going to have gobs of torque to break my axles.
justin
p.s. i don't really want to go to 1 ton axles because i bought wheels without any forethought. i only have a 302, which will be replace by a (slightly) built 351 eventually so i am not going to have gobs of torque to break my axles.
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go for the 9" no question about it, that 8.8 will break if you lock it and even wheel it light. the 9" is probably one of the best 1/2 ton axles made. for the front end you might want to think about putting some chromolly axle shafts in it.
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