3″ X 3″ Straight Crossmember Aluminum 76″ 3″ X 3″ Straight Crossmember Aluminum 58″ 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 10″ Aluminum I Beam $76.95 Part #:4812 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 52″ Aluminum “V” Crossbar $99.95 Part #:4497 Fits Up To A 52" Wide Frame Width. Add To Order Form 80″ Aluminum “V” Crossbar $140.95 Part #:4814 Fits Up To A 80" Wide Frame Width. Add To Order Form