Home / Engines Engines. premium demolition derby products. We also sell cradles and fabricated bumpers. I don't need to hype up, mislead, or "sell" you on something to cover my shop expenses and stay afloat. 6.2K likes. Engines. This is the steering shaft available from M.O.P. This has 8 inches of slip so the steering wheel doesnt get close to you when the front end of the car bends up. This board is for all new demolition derby products that bolt to the car(headers, DP, Cradles, Engines) and Paraphenalia (decals, roof signs, t-shirts, etc. Strong Derby Products, New London, Wisconsin. It features 2 sweet universal joints to provide for maximum flexibility. and quick release hub. Welcome to NeratDemo.com! Selling floor-mounted cable gas pedals, floor-mounted brake pedals, shifters, gas/brake combos and axle savers for demolition derby vehicles. I have built this business with low overhead to keep costs down but build engines with unmatched success. Quality demolition derby parts and accessories. Derby Products. NLR Derby Parts Online Store. We offer a wide array of stock demolition derby parts and accessories. Contact us to order it! Demo Derby Masters is the premier destination for demolition derby drivers and car builders. We also provide custom fabrication and design services to turn your ideas into reality. Featured Products. Ski produces the world’s finest derby products from a variety of cradles, gas & brake pedals, transmission braces, shifters, and much more. At NeratDemo.com, we offer the widest selection of demolition derby parts and products.Since 1993, Brian Nerat has revolutionized the industry in innovating, designing, and manufacturing top quality demolition derby parts.Why settle for copied parts that don’t work. I founded Gropp Automotive Specialties in 1999 to expand my products and services offered for demolition derbies. including shifters, gas pedals, steering columns, transmission coolers and gas pedals. W-Body Combo *NEW BRAKE DESIGN* $ 280.00 Regular Combo Right side *NEW BRAKE DESIGN* $ 340.00 Left Side Combo *new brake design* $ 340.00 Normal Mopar Shifter $ 200.00; Normal W-Body Shifter $ 200.00; 3/4" Full Size Steering Column $ 260.00 – $ 360.00; 3/4" W-Body Steering Column $ 240.00 ).