I just blew out my rear end with 163k miles on it. I have a 5.7L with a 3.55 limited slip differential. What if I upgrade to the 3.92 limited slip? How much torque would I gain? Would my truck be able to handle the difference in the RPMs because of the milage? New or used?
Differential Swap
- Thread starter allmopar
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Bigboytoys
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You won't gain any torque, but your acceleration will be better. Your RPM difference will be a little more but not extreme. The motor should be fine.
Bigboytoys
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No problem!
Redtruck-VA
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The general rule has been 33 and taller 4:56, shorter 4:10. As a guide I use 4:10 gear with a 28 inch tire. 2150 at 65mph. 18mpg hwy
Hemi likes to turn up a little.
Hemi likes to turn up a little.
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