TM 5-3810-300-24 & P2
Refer to Field Maintenance Manual No. 11, "Tandem Hook-Ups", for additional information which applies to tandem
The lower driving shaft with the integrally machined pinion reduction gear is mounted on two tapered bearings. Pinion
bearing pre-load is maintained and adjusted by the use of a hardened precision spacer mounted between the bearings
(using the driven transfer gear as a spacer as well).
The hypoid adjustment is made by increasing or decreasing shim or spacer thickness behind the inner bearing cup. This
requires a corresponding change in the hardened cone spacer so as not to change the bearing pre-load.
The hypoid gear is riveted to one of the differential case halves. The cases are mounted between two tapered bearings
in the carrier legs. Pre-load is adjusted and maintained with threaded adjusting rings.
Backlash is corrected or adjusted by moving the gear only. This is done by backing off one adjusting ring and advancing
the opposite ring the same amount.