Hotchkis 1101C Tubular Upper Control Arms, 64-72 GM A-Body, For Tall Spindle Swap - Manual (Page 2)

6) After removing the front springs, remove the stock rubber droop stop on the frame rail
and install the new poly stop. See Fig. 1
IMPORTANT INFO FOR PART # 1103 (64-72 A-BODY CARS)
For 64-72 A-Body cars, you must use the lower ball joint for the spindle you are going to
use. (For example if you are using a 72 Camaro spindle you must use a new lower ball joint
from the same car. Please look at the parts list for applications.) The new ball joint will need
to be turned down to 2.010” so that it will fit in the stock A-Body lower A-Arm. You can
also purchase an already turned down ball joint from Hotchkis Performance part # 1155. See
Fig. 2
7) Reinstall the lower A-Arm with the new modified lower ball joint on the car.
NOTE: Hotchkis Performance upper A-Arms are designed to operate on cars with a
slightly lowered ride height, we suggest using Hotchkis Performance front performance
springs part # 1901F for 64-72 A-Body cars and part # 1902F for 78-88 A-Body cars.
8) Install Hotchkis Performance A-arm (short leg towards the front of the car) See Fig. 3,
reinstalling the original alignment shims in the same locations and torque the two nuts to
45 ft./lbs. The crosshafts in the A-arms are offset positive or negative, depending which
way that the shaft is rotated. This allows a grater range of camber adjustment. The pre-
assembled A-arms are preset for maximum negative camber. If the proper alignment
cannot be obtained rotate the crosshaft 180 degrees.
FIG. 1
Machine at the
“X”s only.
FIG.2
FIG. 3 Front of Vehicle