3″ X 3″ Straight Crossmember Aluminum 76″ 3″ X 3″ Straight Crossmember Aluminum 80″ has been added to your order form. Checkout View Order Form $125.95 Any Crossmember Over 76″ Long. 3" X 3" Straight Crossmember Aluminum 76" quantity Add To Order Form SKU: 4427 Category: Crossmembers Related products 3″ X 3″ Straight Crossmember Aluminum 52″ $89.95 Part #:4426 Any Crossmember Under 58" Long. Add To Order Form 8″ Aluminum I Beam $49.95 Part #:219 Sold By The Foot. Add To Order Form 7 1/2″ Aluminum I Beam $32.95 Part #:218 Sold By The Foot. Add To Order Form 3″ X 3″ Straight Crossmember Aluminum 58″ $97.95 Part #:4223 Any Crossmember Over 58" Long. Add To Order Form