Owner manual
3
responsible manner. Be sure to read and understand the driving
informaon in the LOCK-RIGHT Vehicle Owner’s Manual!
Background Informaon
The dierenal case is the round housing inside the rear
axle assembly to which the ring gear is bolted and which contains
the dierenal spider and side gear assembly. It is installed in
the dierenal carrier, which is the housing that holds the case,
drive pinion gear, bearings, etc. The carrier may be removable
(as part of a “drop-out” unit, or third member), or it may be in-
tegral (as a permanent part of the axle assembly, mounted in the
vehicle). This manual covers the removable third member, tech-
nically known as the Dierenal and Carrier Assembly.
The LOCK-RIGHT is designed to t into standard open
dierenal cases only, not into limited-slip (clutch-pack) type
cases. If your vehicle contains a limited-slip unit you will need
to purchase a standard open dierenal, thrust washers and
pinion sha before proceeding.
A word about pinion shas: Some models of dier-
enals use shas with circumferenal oil grooves for oil distri-
buon, while others use shas with ats. The shas with ats
are re-used, while those with grooves are not. If new shas are
provided in your kit, use them. If no shas are provided, use the
exisng shas.
A word about side gear thrust washers: All dierenals
originally had a thrust washer under each side gear. Thrust wash-
ers are large in diameter and between about 1/32-inch (.031, or
0,76-mm) and 1/16-inch (.062, or 1,52-mm) thick. If either one
or both are missing from the original dierenal, obtain new
one(s) before proceeding! The LOCK-RIGHT is designed to be
used with a correct thrust washer under each coupler, and failure
to use this washer is easy to observe during inspecon and will
void the warranty.
NOTE: The parts shown in the various gures are typical
and may not exactly depict your parcular model.