Hotchkis 80002 TVS System, Sport, 64-66, GM A-Body, Small Block User Manual
Page 11
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It may be necessary to set pinion angle after installation of your new Hotchkis upper trailing arms.
First of all, what is pinion angle? Pinion angle is basically the angle between the centerline of the differential
pinion and the drive shaft centerline. This angle changes during acceleration and braking. If the pinion angle
is excessive, then vibration and increased U-joint wear will occur.
The Hotchkis double adjustable trailing arms allow you to adjust the pinion angle with ease. Simply loosen the
two jam nuts and rotate the aluminum turnbuckle to lengthen or shorten the arm. So, how does one set the
pinion angle?
The simplest rule of thumb is:
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