when iam goin down the road say 45-55mph, and let off to stop soon, as it slows down u can hear a humming kinda sound from the rearend, kinda sounds how a exhaust break is on a diesel... someone said thats its the splines problem??? what do u think?

 

have you ruled out tire noise (aggressive tread on FX4)?

 

yeah, cause this just starts when iam off the gas slowing down, i can let off, and a few seconds later u can hear it, so i know tires cant be 1uiet for 5sec. and start makin noise..

 

sorry, don't know enough about the splines issue.

I tried to help where I could.

Hopefully you find the answer.

 

i think theres a tsb on rearend whine

 

reference TSB 4-25-08

High Axle Gearset Pitch Line Runout.

T42508.pdf

 

thanks for the help man, i'll see what the deal is....