If you've ever wanted to see and hear about (1) how to
set the pinion bearing preload on the Ford 8.8" axle
(and what it sounds like to have too little or too much of it); (2) how to m
ake the backlash adjustment on the Ford 9" rear; (3) what pinion failure is and how to detect it, along with what "noisy gears" sound like, then check out these YouTube clips: Setting pinion bearing preload on the Ford 8.8" axle
noisy gears
too much carrier preload
not enough carrier preload
PINION FAILURE
Making backlash adjustment on the Ford 9" rear.