Hotchkis 80390 TVS System, Stage 1, 67-72 C-10 Small Block, 4'-6' Drop, 2WD - Manual (Page 22)

Install the cross shaft onto the vehicle first, using the same nuts that held in the stock arms.
Next, insert the ball joint stud into the spindle. You may need to raise the spindle using your floor jack
once again. Spin the included castle nut on the stud and fully tighten. Make sure to line up the castle
nut with the cotter pin hole. Insert the cotter pin and bend to lock.
Reinstall the wheels. You will need to perform a front end wheel alignment after this installation.
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