ChrisFix demonstrates how to replace leaf springs, shackles, and mounting brackets on vehicles with leaf spring suspension. He also shows how to replace bushings, remove rust, and apply undercoating to prevent future corrosion. The video includes tips for using common tools and safety equipment, as well as advice on inspecting suspension components to avoid accidents. ChrisFix emphasizes the importance of using new fasteners and properly torquing bolts after loading the suspension with the vehicle's weight.
1. The presenter, ChrisFix, is going to show how to replace leaf springs, shackles, and leaf spring mounting brackets in a truck or SUV.
2. Leaf springs should be replaced if they are physically damaged, rusted out, or if the suspension is sagging.
3. Leaf springs are held in place at three different locations: the front mounting bracket, the mounting bracket on the axle, and the rear mounting bracket.
4. To remove the leaf spring, the four nuts on the front mounting bracket must be removed.
5. A breaker bar can be used to loosen stubborn bolts.
6. A jack and jack stands are needed to lift the rear of the truck and remove the leaf springs.
7. The rivets on the mounting bracket must be removed using an angle grinder.
8. The rust on the mounting bracket must be removed using a wire wheel.
9. A rust reformer can be applied to the mounting bracket to convert the rust into a paintable surface.
10. An undercoating can be applied to protect the metal from rusting.
11. The presenter used two cans of rust reformer to coat the entire frame.
12. The presenter used a twist socket to remove a rusty nut.
13. A torch can be used to heat up the outside metal of the leaf spring to remove the bushing.
14. A hacksaw can be used to cut the outside rubber off the bushing.
15. A metal wire brush can be used to clean the inside of the leaf spring.
16. A new bushing can be installed by lubricating it with silicone and tapping it into place.
17. The presenter used a shackle from a Chevy or Dodge as an upgrade.
18. The presenter used a file to file away material from a hole to fit a nut.
19. The presenter used new fasteners instead of the old rusted ones.
20. The presenter torqued down the bolts to 80 foot-pounds.
21. The presenter used a jack to lift the rear of the suspension to load the leaf springs.
22. The presenter torqued down the bolts on the shackle to 80 foot-pounds.
23. The presenter replaced the leaf springs, shackles, and mounts on both sides of the truck.
24. The presenter undercoated the truck and gave it a little lift.
25. The presenter's truck was back on the road and ready for use.