Instruction Manual

2
Introducon
Welcome to the growing family of LOCK-RIGHT owners!
This manual will help you install your new LOCK-RIGHT automac
100% full-locking dierenal. When the installaon is complete,
your vehicle will have extreme tracon! We trust that you will be
pleased with its performance and thank you for your condence
in our products.
LOCK-RIGHT installaon simply involves disassem-
bling and re-assembling the dierenal case, replacing a few
parts in the process. These instrucons are detailed to the
point that a person who is reasonably familar with automove
work can install a LOCK-RIGHT into a third member in about
three to four hours; please read them carefully before you start
to be sure that you thoroughly understand them. Do not at-
tempt shortcuts unless you know exactly what you are doing.
These instrucons also assume that you have the proper shop
manual for reference to instrucons about axle removal, torque
values, sengs, clearances, etc. Our manual is a general guide
to operaons but does not repeat all the shop manual details.
This manual primarily describes the assembly of the
two- or four-pinion two-piece dierenal case that has a cap
held on by the ring gear bolts. Some references may be made to
the front axle or to 4x4 operaon; if your vehicle is a 4x2, ignore
them. Note that most of the photos are of a Ford® 9-inch assem-
bly; however, the installaon of the LOCK-RIGHT itself into the
dierenal case is the same for VW® dierenals and for others
as well.
We suggest that your rst installaon be done in the
rear axle. This is because the inial weight of the engine over
the front axle is reduced by weight transfer to the rear as your
vehicle climbs a hill, meaning that more and more weight is being
applied to the axle with the locker in it as more tracon is need-
ed. If the locker is in the front, tracve weight becomes less as
the hill becomes steeper.