Hotchkis 1814 Rear Suspension Package, Adjustable, Dual Upper, 65-66 GM B Body - Manual (Page 11)

6) Using the grease provided, apply a heavy coat of grease to the sides of the bushings at
both ends. Apply a light coat of grease to the surface contact areas of the bushing on the frame
and axle too.
7)
With the bushings greased, install the arm into the mounting locations on the frame and axle.
Use the hardware kit provided to secure the Hotchkis trailing arm in place. Do not tighten the
hardware until both ends have been connected to the axle and frame.
8) Repeat removal and installation of the opposite lower arm.
9) Re-install the springs. Only a trained technician should attempt this. Use the welded spring
seat on the Hotchkis arms to center and mount the springs on each arm.
10) Place the spring retainer plate inside the center of the spring once it is centered on the seat
properly. Use the hardware provided to hold the plate down. The plate will deform to fit each
spring individually as it is tightened down.