ok i got a whine from the driveline and cant pinpoint weather its trans or transfercase it does it on accel and decel and changes when i hit bumps but its not always there. i have not had the time and also my lift isnt installed. the truck is a 02 8.1 with allison cab and chassis extended cab dump bed dually thinking it might be the transfercase but havent been able to check fluids yet. anyone else experience it??
