Cool, thanks for the comments guys!
I'll go ahead and try out tip inserts. It looks like the only ones available online are high durometer polyurethane... probably fine, but right now I'm planning to turn my own out of UHMW for maximum durability & minimum friction. I heard that drilling spring steel is reasonable with a masonry bit... we'll see.
Sounds like the full length liners are also tried and true, but since this is for the front springs on a 4x4 axle (will get beat on a lot), I'll avoid sticking extra layers under the u bolts.
Last edited by Ott3r; 11/20/2019 5:14 AM.
