Darton International was incorporated in 1978 with a goal of becoming a premier manufacturer of automotive speed equipment parts. In pursuit of this objective lead the founders to establish manufacturing relationships with unique European factories specializing in products and techniques which would harmonize with Darton's potential customers

Darton initially selected two groups of products to concentrate on: steelstampings (such as valve covers) and precision CYLINDER SLEEVES. One of the company's first customers for both groups of products was Milodon Engineering. Together, they pioneered new and innovative ways to manufacture their product, performance cylinder sleeves. Darton became the first supplier of high quality centrifugally cast ductile iron cylinder sleeves to meet SAE and ASTM rigid quality control standards.

Donovan Engineering Corporation has been making aluminum engine blocks since 1971 with the Donovan 417 which was based on the 1958 Chrysler 392 Hemi.

Since then, the state-of-the-art facility has provided engine builders around the world with aluminum engine blocks based on the small block Chevy, big block Chevy, Model-D, and the 417 Hemi.

For 26 years Joe Eder Motorsports has been building/pulling championship vehicles at all levels of competition. Our goal at Eder Motorsports is to build and supply you with the pulling industry's best high quality custom built pulling chassis and specialty parts. We offer complete CNC machine services and have a long history of building championship combinations on the State, Regional and National circuits.

The business was established in 2001 under the name of B&D Enterprises.  In 2006, the business name changed to Fair Valley Performance & Repair (FVP).  Currently Dennis Frey, his wife Jennifer, and the team of Scott Luck, Travis Meinholz, Casey Schroeder, Greg Sprecher, Gavin Meeker, Drew Schulenburg, Ashley Frey, Austin Perry, Scott Thompson, and Ryan Devine and operate FVP out of Sauk City, Wisconsin USA.  

Modern Machine & Tool, Inc. was established in 1998 in a garage with one lathe, mill and saw along with a few tools. Modern Machine strives on quality of our product and responsive customer service. We specialize in specialty machine parts, custom machining and fabrication. We have the capabilities of a simple one off part or large quantities of complex castings or detailed parts.

Pioneer Motorsports L.L.C. specializes in custom data acquisition systems for truck and tractor pulling. RPM Performance Products' quality hi-speed data logger will provide a wealth of information that will improve your ability to get the most from your truck or tractor.

Profab Machine, Inc emerged in 1987 with the goal offering a cost effective product line at the the highest quality standards for four-wheel drive pulling trucks.  It has since grown to include super stock, pro stock, and super farm tractors, as well as two wheel drive and modified pulling vehicles.

ProFab uses modern machinery and the latest technology to produce high caliber products.  From the product materials to the heat treating process, quality and satisfaction are our number one priority. 

Crower Clutches and custom Flywhels. 309-795-1502. 12525 148th Ave W, Taylor Ridge, IL 61284

Scheid Diesel Service Co., Inc. was started May 1, 1982 with 5 employees in Terre Haute, IN. In 1990 we opened our second location in Effingham, IL. Our Lafayette, IN shop opened in 1999. All three locations have a fuel injection shop as well as a dedicated drive in service area. The company has grown every year to its present 50 employees and we are still growing. We can service any diesel engine including, but not limited to agricultural, construction, heavy duty truck, and automotive. Scheid Diesel has also made its mark in the diesel performance market with tractor and pickup truck pulling as well as diesel drag racing.

Staab Machine incorporated in 1990, specializing in custom performance parts. At first, Staab Machine worked with stock component parts; modifying them to output more power. Gradually we moved away from stock parts to manufacturing our own as we gained new knowledge.

Today, Staab Machine’s goals are the same as they were when it began; to make quality, parts, and to never stop inventing better products for our customers. Staab Machine continues its goals producing parts for top Grand National pullers down to antique tractor pullers.