3″ X 3″ Straight Crossmember Aluminum 58″ 12″ Poly Keel Pad has been added to your order form. Checkout View Order Form $97.95 Any Crossmember Over 58″ Long. 3" X 3" Straight Crossmember Aluminum 58" quantity Add To Order Form SKU: 4223 Category: Crossmembers Related products 3″ X 3″ Straight Crossmember Aluminum 52″ $89.95 Part #:4426 Any Crossmember Under 58" Long. Add To Order Form 3″ X 3″ Straight Crossmember Aluminum 80″ $130.95 Part #:4425 Any Crossmember Over 80" Long. Add To Order Form 10″ Aluminum I Beam $76.95 Part #:4812 Sold By The Foot. Add To Order Form 80″ Aluminum “V” Crossbar $140.95 Part #:4814 Fits Up To A 80" Wide Frame Width. Add To Order Form