How Tight Should Shackle Strap Bolts Be

Published 08/18/2017

Question:

what is the torque on these?

asked by: Mike

Expert Reply:

The shackle bolts used between the springs and hangers do not require a specific torque rating because tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs, and the whole suspension system will bind and cause problems. The best thing to do when tightening down shackle bolts is to use lock nuts, tighten them until they are snug, then back them off 1/4 turn. Lock nuts should be used because they resist loosening with vibration or torque.

The part # K71-358-00 comes with lock nuts.

expert reply by: Jameson C