Both trailing arm mounts on the chassis. Also included are all new zinc coated washers & locking nuts.This kit was created out of demand from our customers who needed the proper bolts so they could rely on their machines down the road. You may not notice issues now but all of these problems are long term and once problems appear the repair bill to fix it is going to be more than the cost of this kit! The issue with the oem bolts is the shank length is too short! With suspension components you always want a bolts shank to go through both sides of the mounts for that piece of suspension. Thus putting all of the load onto the strongest part of the bolt which is the shank!
By not having a bolts shank that's long enough to go all the way through both sides of the mounts it puts the load of your impacts onto the weakest part of the bolt, which is where the bolt changes from shank to threads! Over time this will start to wallow/oblong out the side of your mounts that has only threads and not shank through it. Ultimately creating even more play than is originally there and the problems will only compound from there! Bent bolts, broken bolts, bent suspension components, the list goes on and on!Don't let this happen to your machine!