You might want to pm a member here known as firstchoice,He just worked on the rubber bumpers for the AAR and had to do some tweaking with a press and fixed all of the broken studs.I dont have any experience with them but I can say he did an awsome job with the frt and rear bumpers.If you dont hear from him just let me know,I will be going to his garage at some point to put rearend back together for the AAR-------The Clown