description thule truck rack sr base rail sds super duty shortbed 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 quick installation without drilling into the truck aluminum construction includes all required mounting hardware 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 21510 assembled depth (in) 1.9 assembled height (in) 81.5 assembled weight (lbs) 24.1 assembled width (in) 4 brand / model compatibility requires thule tracrac sr overhead rack or thule xsporter pro shift overhead rack (sold separately) california proposition 65 warning required yes country of origin united states globaltradeitemnumber (gtin) 00721260215101 height (in) 81.5 package contents 1 sr base rail sds (super duty shortbed) package depth 5.8 package height 100.5 package weight 24.1 upc 721260215101 weight capacity (lbs) 1250