Steering & Suspension Repair Great Falls


Steering & Suspension

Dooleys Diabolical Diesel has put together an A-List team of manufacturers, parts and procedures to fix and upgrade your Duramax front steering and suspension problems that commonly and repeatedly wear out and breakdown. OE replacement parts are far from OE quality and need to be replaced again and again – and again! OE level parts also wear much quicker with modifications such as larger wheels/tires and lift kits. We have a combination of after market, well engineered parts that can handle the abuse of a hard days work. Matched with companies like Moog, Kryptonite, DMax HD, Cognito, Redhead Steering,  and more, we will build you and your work truck the longest lasting front end possible.

Moog Auto Parts Great Falls Montana

Dooley’s Diabolical Diesel is an authorized dealer of the Moog Brand of Suspension Parts. Every Moog part you buy from D3 carries the full manufacturer’s warranty from Federal Mogul and we will personally assist you in receiving that warranty support if it is ever required. We buy all of our Moog parts directly from the manufacturer, Federal Mogul, and can order any Moog product to be at our shop in a few days. We do not stock or sell any other brand of chassis parts, so there is no possibility that you would ever receive a cheap knockoff part when you purchase your Moog parts from us. In a rare out of stock situation, we will never substitute it with a non-Moog brand part.

Kryptonite Logo


KRYPTONITE PRODUCTS has spent years developing the strongest and most reliable parts on the market. This is why we back our parts with the best warranty in the industry.Our parts truly deserve to be called “HARD CORE”Kryptonite No

Fine Print Lifetime Warranty) -Kryptonite steering and suspension components are warrantied for life to their original purchaser. This warranty is against any manufacturer defects, premature wear or breakage. Race it, jump it, off road it, sled pull it, lift it, level it, lower it, I think you get it? We don’t care. If you can break it we will replace it.

Cognito Authorized Dealer Great Falls

Ingenuity – Quality – Performance

Industry-leading designer and manufacturer of premium steering, suspension, chassis and accessory performance upgrades for popular passenger trucks, SUVs and UTVs for over two decades.


RedHead Steering Gears

Read Head Steering Gears manufacturing process:

  • Machining out the housings and installing needle bearings
  • Flame-spraying or replacing the shafts as needed
  • Installing new control valves on some applications
  • Custom fitting each worm & piston assembly with special ordered, precise over-sized ball bearings.

Other things we do to produce a top quality product include:

Install every sector shaft on a lathe to check for straight and true polish the sealing surface to a higher polish then new.

Probably the most unique and important thing we do is custom fit every single worm and piston assembly with new precision fit steel balls. This is a process not matched by any other company in the industry. This process is very important. The machining tolerances of the original manufacturing leave a small and varying amount of play that can not be corrected in any other way.