I would like to go up to the 11.6 brakes in the rear on my '97. As I understand it I need to use the rear calipers and bracket from a GEN 1 with Josh's adaptor kit and 11.6" rotors. When I look at the AZ parts catalog it shows no brackets for the '89 but does show brackets for the '92. Are the 89 and '92 brackets the same? Part number is Dorman 619-101 and 619-102. Paul