description thule truck rack base rail 20 chevy/gm short the base rail is quick to install and doesn't require any drilling into your truck. it also has smooth sliding and adjustability due to its custom fit base rail. california proposition 65 warning. features includes all required mounting hardware quick installation without drilling into the truck aluminum construction requires thule tracrac sr overhead rack or thule xsporter pro shift overhead rack (sold separately) smooth sliding and adjustability due to custom fit base rail. specifications acme tools brand name thule acme tools part number 217870 assembled depth (in) 81.54 assembled height (in) 1.9 assembled weight (lbs) 24.1 assembled width (in) 4.02 brand / model compatibility requires thule tracrac sr overhead rack or thule xsporter pro shift overhead rack california proposition 65 warning required yes country of origin united states globaltradeitemnumber (gtin) 00091021092266 height (in) 1.9 package contents 1 base rail (20 chevy/gm short) package depth 4 package height 2 package weight 24.1 upc 091021092266 weight capacity (lbs) 1250