Kdawg_69

hey this is what i would do if it was my truck i would go ahead and rip the cover off and look at the actual gears and if they are aftermarket gears the ring gear will be a lot thicker and on it somewhere should be the ratio inscribed on it somewhere

cbholt

If the truck has a limited slip diff, jacket up the back and put a mark on the drive shaft. Turn the wheel one full rotation and count how many turns the drive shaft turns. If it is about 3 3/4 turns, its probably 3.73. Little over 4 is probably 4.11.

If you have an open rear diff, jack up one side only and and rotate the wheel one full turn. Multiply the drive shaft rotations by 2.

FX4F1502002

okay ill try that now one other question is if it is after market gears do I need a different clytch pack than stock cause my clutch pack is bad an I need to replace it soon

FX4F1502002

anyone? or am I better takunv it somewhere cause I not the best when it comes to rear axles much

cbholt

No, gear ratio or brand does not have any effect on the clutch packs.

cbholt

No, gear ratio or brand does not effect the clutch packs.

FX4F1502002

okay thank you very much

ctfox

mark the driveshaft where u can see it and if u want mark the closest non moving part to that mark, lift up the back end and spin both wheels one complete revolution and count how many times the driveshaft spins in that one trie revolution...ex. 3:73 will turn 3 3/4 times....4.56 will turn 4 1/2 times its not 100% exact but close.