Hotchkis 80390 TVS System, Stage 1, 67-72 C-10 Small Block, 4'-6' Drop, 2WD - Manual (Page 51)

6F
Support the lower arm and remove Nut
Place a jack underneath the lower control arm and jack up to support the force from the
spring. You should see the castle nut rise and you should be able to remove the nut by hand.
7F
Remove the spring
Slowly lower the jack which will swing the lower arm down and release the coil spring.
8F
Install New Droop Stop
The Hotchkis spring is a bit shorter in height compared to stock. This requires a taller droop
stop to be installed on the upper a-arms to prevent the coil from disengaging from the
mounting pocket during full droop. Undo the stock droop stop and replace it with the supplied
Hotchkis droop stop.