He said I'm sorry but these are aftermarket quad parts you gotta make them work for your application. I have a completely stock frame and his shit didn't work. I've had several sets of aftermarket a arms never had any of these issues. His heim joints are retarded also they slip right through the spindles no drilling them out. So they only have a small part of the taper to ride against. I will be going which wheelman chassis next time or if he's to busy stellar.