Frame 4" x 8" x .500 structural tubing | Gang & Bearings 8 x 8" gang bar, 4" x 8" gang standard structural tubing welded to gang bar, 2 ¼" heat treated alloy steel axle, self aligning greasable triple sealed bearings in trunnion mounted housings w/ replaceable bearing wear guards Optional TRB bearings available | Blades & Scrapers 32" x 9.5mm notched blades w/ 14" spacing & 3/8" T-1 steel scrapers | Hydraulics Independent axles with twin 5" x 12" welded cylinders with 2 ¼" triple chromed rods, rod stops, hoses and holders. Hydraulic>tongue leveling mechanism for field transport, also controls main pole height for easy hitching to various drawbar heights and features heavy duty clevis | Misc. Safety tow chain | Wheel & Tires Four 11L x 22.5" 12-ply tires on 8-bolt heavy duty hubs