Now that I am mostly complete with my running go cart, it's time to focus on the body and exterior work. I ordered the over riders from FFR and earlier I used the threaded coupler nut mod in the rear to avoid dropping the tank. Do I need to use threaded rods roughly the same length as the bolts that FFR supplies for the quick jacks? I am going to use the over riders only, no other bumpers. Also, are there any particular grommets or finish parts that people recommend rather than just using washers? Thanks for any input.