So I thought I would improve on my old backblade by adding a trailing wheel and sides to the blade to make it a box blade/roadgrader. The wheel is adjustable up and down by the hydraulic cylinder you see. Found the wheel in one of the sheds here, the side plates are 1/4″ steel plate and cost me $41.00. OUCH! Price of steel has gone up alot! Spent $4.00 on plow bolts to mount the plates and that’s it. Total cost: $45.00. Works just fine, too. Way better than the old blade.