3″ X 3″ Straight Crossmember Aluminum Under 58″ Any Crossmember Under 58″ Long. SKU: 4223 Category: Crossmembers Related products Aluminum Straight Crossbar Extended Step Call For Price Part #:3608 Extends Past The Frame For Extra Fender Support. One Front And One Rear Of The Fender. Up To 105" Long. McClain Frame To Crossbar Support Call For Price Part #:2332 Used With The 4 1/2" And 5 1/2" Tall I Beam. Aluminum “V” Crossbar Call For Price Part #:1183 Fits Up To A 82" Wide Frame Width. Aluminum V Crossbar Extended Step Call For Price Part #:1185 Extends Past The Frame For Extra Fender Support. One Front And One Rear Of The Fender. Up To 105" Long.