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8 2015 GMC Sierra 3500 HD SLT Crew Cab Pickup 5 in
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BASE RAILS GMC SHORT BOX CREWCAB 2016 Chevrolet Silverado 3500 HD 8 2015 GMC Sierra 3500Features Quick installation without drilling into the truck Requires Thule TracRac SR Overhead Rack (sold separately) Smooth sliding and adjustability due to custom fit base rail. Fits GMC 5. 5' Box Technical specifications Length (in) 68 Width (in) 4 Height (in) 1. 9 Model number 21608 Warranty Thule is dedicated to providing exceptional products that are quality tested and guaranteed against defects in materials and workmanship. View warranty
