Thanks for this and your other builds and mods Fsttanks! I'm enjoying making these mods to my Abrams, have the bearing holders on order from Aliexpress and just finished the suspension arm stops mod! Still need to hit the auto store for the nylon washers. This is a lot of fun and your pictures inspire the confidence to go ahead with them. Even though I don't have your tough terrain it's good to know my M1A2 will be ready for it!
Let me ask, when you added the bolts and nylock nuts to your wheels did you sleeve the bushings with something or are the wheels running on the threads of the bolts?