Leaf Liners, Powder Coating & U-Bolt Torque Tech

Tech Question - Leaf Liners, Powder Coat & U-Bolt Torque

Mike,

I wish I had read your tech page about two months ago. I just had my leaf springs powder coated and I've re-assembled the front springs with poly liners between the leafs. Am I correct in assuming that your advice for nothing to be between the springs also applies to these poly liners?

If so, then I will dis-assemble and remove the powder coat and the poly liners between the leafs. (Of course this is after confirming with the powder coating company that the springs were not baked at a temperature higher than 350 degrees). Can you confirm that this is the best approach for me now?

Last question. I'd like to use new spring clips or bands rather than trying to re-use the originals. I haven't been able to find these at the normal places. Can I order them from you? Do you sell them in sets, or do I need to order each size by quantity needed?

Thank you. Excellent site. I only wish I had found you guys earlier.

Doug

Doug,

When I talk about nothing between the leaves I am referring to coatings, paint, powder coating, etc. If the liner is Delrin, it is OK to be between the leaves. Delrin is a plastic type material that is tougher than nails. This is the material that tip inserts is made form. This stuff is so tough that many times it is still in decent shape when the springs are completely worn out.

If the liner is anything other than Delrin, take it out for it will cause trouble in time.

The problem with putting a coating between the leaves is as the coating wears down, it allows excess movement between the leaves. It is this excess movement which will lead to premature spring breakage.

Now that the leaves have been powder coated, keep an eye on the u-bolts. Every 5,000 miles or so re-torque them. Keeping the u-bolts torqued to spec (Go here for U-Bolt Torque Specs) will eliminate the excess movement between the leaves.

As for the spring clips, we have all different styles and types, give us a call and our sales staff will fix you up.

-Mike