Hotchkis 3003 Leaf Springs, Rear, Mopar Thrust Angle Shims - Manual (Page 3)

Terms:
Geometric Centerline: When observing the vehicle in plan view, this is an imaginary line that
runs through the center of the front wheels and rear wheels
Thrust Direction: When observing the vehicle in plan view, the thrust direction follows an
imaginary line that runs through the center of the rear wheels and points in
the direction the rear wheels propel the vehicle. In live axle vehicles, thrust
is typically parallel with the direction of the rear wheels.
Thrust Angle: The angular difference between the Geometric Centerline and the Thrust
Direction. The thrust angle is positive when it points to the right and negative
when pointed to the left. The goal is to have this angle to be zero.
2. Raise the Vehicle
Raise the vehicle and safely secure it on jack stands. Make sure to support the rear of the
vehicle on the chassis rather than the differential.
3. Support the Differential
Place a jack underneath the rear differential pumpkin and apply jacking force until the weight
of the differential is relieved. This will allow you to disconnect the front leaf spring mount
without fighting any unwanted preloads.
4. Install the Shims
Begin unbolting the 4 nuts that secure the front leaf spring mount to the chassis on the side
that requires shimming. Once mount is somewhat detached from the chassis, you can slide in
the amount of shims you require. The kit comes with 6 shims @ 1/32” thickness.