54hydramaticFL, If, and I say IF yours would be the same as the ones on my 52 here is the number for Classic Parts #76-005 and they came as a pair. If I remember one is left handed and one if right handed.
They are actually CCP part #TRE-47-59. I put them on my 52panel and they are nice. I'm running 235 tires and no rub.
IF your GMC are the same these would work. Good Luck.
EDIT: the price was $54.70 including shipping August 2011. I shopped around because a couple vendors were quite high/expensive!
Last edited by Achipmunk; 02/16/2013 8:11 PM.
