GM Full Size Vans 1967-1986 Repair Guide
REMOVAL & INSTALLATION
Raise and support the van.
Support the axle with a floor jack so that the weight is taken off the spring.
Remove the spring-to-axle U-bolts.
Remove the front and rear spring eye bolts and remove the spring from the van.
Installation is the reverse of removal. Position the spring so that the head of the center bolt is indexed with the axle spring seat. After the springs are attache, lower the van to the ground and bounce the front end up and down several times. Then torque the nuts and bolts as follows:
Leaf Spring U-bolt: 80 ft. lbs. (108 Nm)
Leaf Spring (front): 75 ft. lbs. (101 Nm)
Leaf Spring (rear): 50 ft. lbs. (67 Nm)