Great items that work with the yeah racing rear aluminum suspension arms. When these are used with the aluminum arms the parts will not bend like the stock plastic parts do while under load. The stock plastic parts will cause damage to your dogbones if they bend...these don't bend and will save you alot of money on dogbones if you have POWER in your truck. I would recommend you use longer fine thread screws that go all the way threw these parts and put a 3mm lock nut behind the parts so they can never loosen up or move out of position. Simply tighten the longer screws all the way threw the parts then put a 3mm lock nut behind the parts but don't tighten all the way. Don't tighten the 3mm locknut all the way down, then loosen up the screw so the suspension/shocks work great and the longer s..