Rear Brake Backing Plate
#1
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Guys, I know it's going to be a used part only at this point but I'm in need for a rear brake backing plate for the driver's side of a 2005 GXP. Question is do all of the LS4 cars use the same one or is the GXP one GXP specific? I know the Grand Prix 3800 cars are different so no joy there. Just need to know exactly what my options are.
TIA
TIA
#3
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After checking around I think the real difference is the parking brake assembly and not the rotor size. The GXP uses a drum style parking brake which is mounted to the backing plate while I believe the other LS4 cars uses the caliper as the parking brake.