Hotchkis 1402 Trailing Arms, Mount Braces, 68-72 GM A-Body User Manual
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5)
Using the jack placed under the differential, raise the rear suspension to its approximate ride
height. The braces are generally easier to install with the rear axle at its normal ride height
position to the frame.
NOTE
: Be careful not to unload the weight of car off the jack stands.
To keep the axle from rotating, install one brace at a time. Do not
have trailing
arm bolts removed from opposite sides at the same time.
6)
Remove one front upper trailing arm bolt and replace with supplied longer bolt and washer.
Push bolt through trailing arm until about ½” of thread is showing. A short amount of thread
makes it easier to slide the brace onto the bolt.
NOTE
: If the emergency brake cable covers the upper trailing arm bolt, then this cable will have
to be moved slightly. Do this by removing the cable bracket bolt just above the pinion.
Push the cable aside for the brace clearance.
7)
Repeat step 6 for the front bolt of the lower trailing arm. Access to this bolt should be through
a hole in the outside of the frame that can be reached with a socket and ratchet extension.
These pictures were taken on a bare frame for reference.