58″ Aluminum “V” Crossbar $107.95 Fits Up To A 58″ Wide Frame Width. 58" Aluminum "V" Crossbar quantity Add To Order Form SKU: 4813 Category: Crossmembers Related products 8″ Aluminum I Beam $49.95 Part #:219 Sold By The Foot. Add To Order Form McClain Frame To Crossbar Support $4.95 Part #:2332 Used With The 4 1/2" And 5 1/2" Tall I Beam. Add To Order Form 3″ X 3″ Straight Crossmember Aluminum 80″ $130.95 Part #:4425 Any Crossmember Over 80" Long. Add To Order Form 4 1/2″ Aluminum I Beam $19.95 Part #:215 Sold By The Foot. Add To Order Form