Hotchkis 18390 Rear Suspension Package, Adjustable, 63-72 C-10 - Manual (Page 8)

Install the lower shock mounts in the same manner as stock removal. Please see
picture for proper orientation and placement of side specific brackets. Secure the
lower shock mounts using the original u-bolt hardware. (Please call Hotchkis if you
would like to purchase new U-bolts  P/N:
T1734) Fully tighten hardware at this
time. (Tip: It is recommended that you apply anti-seize compound on the U-bolt
threads before reinstalling the nut.)