The Positraction Unit Builder is responsible for the hands-on assembly, inspection, and testing of limited slip differential (positraction) carriers used in performance, off-road, and street drivetrain applications. This role requires precision mechanical assembly skills and a thorough understanding of differential components, torque specifications, and quality standards. The ideal candidate takes pride in building performance-grade drivetrain products that meet or exceed OEM tolerances.
Essential Duties and Responsibilities
Assemble clutch-style and helical-type positraction/limited slip differential carriers from component parts, including bevel gears, spider gear sets, side gears, pinion gears, clutch packs, springs, cross-pin shafts, roll pins, and thrust washers.
Read and interpret assembly work orders, engineering drawings, and build specifications to ensure correct configuration by vehicle application, axle spline count, gear ratio, and carrier series.
Install and properly seat Raybestos composite clutch pack assemblies and verify spring preload settings to specification.
Machine or inspect internal gears fabricated from forged steel for correct tooth profile, surface finish, and dimensional tolerances.
Perform torque-to-turn breakaway testing and backlash verification on completed assemblies to confirm proper clutch pack engagement and lockup characteristics.
Conduct visual and dimensional inspection of all components prior to assembly; reject non-conforming parts per quality control procedures.
Maintain accurate production records, traveler documents, and serialization logs.
Operate hand tools, torque wrenches, dial indicators, micrometers, and other precision measuring instruments.
Follow all workplace safety protocols including PPE requirements, lockout/tagout procedures, and proper lifting techniques.
Keep work area clean and organized; perform routine equipment maintenance as assigned.
Collaborate with QC inspectors and engineering staff to resolve assembly issues and implement process improvements.
Meet daily production targets while maintaining zero-defect quality standards.
Requirements
Required Qualifications
High school diploma or GED equivalent.
Minimum 1–2 years of experience in mechanical assembly, drivetrain/differential repair, or automotive manufacturing.
Working knowledge of limited slip differential components and assembly principles (clutch-type, helical, or locker-style).
Proficiency with precision measuring tools: torque wrenches, calipers, micrometers, and dial indicators.
Ability to read and follow assembly work instructions, technical drawings, and bill of materials (BOM) documents.
Strong attention to detail and commitment to quality workmanship.
Ability to lift up to 50 lbs. and stand for extended periods in a production environment.
Preferred Qualifications
Experience assembling GM, Ford, or Chrysler/Mopar differential carriers (e.g., GM 8.5"/8.6", GM 12-bolt, Ford 8.8", Chrysler 9.25").
Familiarity with performance drivetrain brands and products (Yukon Gear & Axle, Eaton, Auburn Gear, etc.).
Experience in a lean manufacturing or ISO-certified production environment.
Automotive vocational training or ASE certification (Drivetrain/Axles - T4 or equivalent).
Experience with forged steel component handling and identification.
Physical Demands
Frequent standing, bending, and use of hands and arms for assembly tasks.
Occasional lifting of assemblies and component kits up to 50 lbs.
Exposure to shop environment including lubricants, solvents, and metal components.
Use of personal protective equipment (safety glasses, gloves, steel-toed footwear) required at all times on the production floor.
Work Environment
This position operates in a manufacturing/production facility. The employee will regularly work near moving mechanical parts and may be exposed to moderate noise levels. Proper PPE is required at all times in designated areas.
RANDYS Worldwide is the leading supplier in the United States for performance and OE replacement differential gears, axles, installation kits, small parts, tools, lockers, limited slips, drivelines, manual transmissions, transfer cases, and more. RANDYS is defined by unsurpassed inventory, vast parts selection, and top-notch industry expertise. Our employees know and love the automotive space, with many experienced in assembling and modifying their own builds. It’s this passion for parts that gives us our competitive edge. Customers are guaranteed to find the part they need, the know-how to use and install them, and enthusiastic support from our staff every step of the way.
RANDYS Worldwide caters to all types of automotive installers, enthusiasts, teams, and racers in off-road, street, track, restoration, custom, and general repair. Our manufactured brands (USA Standard, Yukon Gear and Axle, and Zumbrota Drivetrain) are installed and sold everywhere.
Within the authentic culture of RANDYS, you have the opportunity to drive the story of your own career, moving in a new direction and taking your professional experiences and achievements to the next level. The automotive industry is a landscape that is highly technical, constantly changing and always evolving.
We are a forward moving collaborative group who bring passion to our work and find excitement and inspiration in discovering, designing and developing new products that provide diverse innovative solutions to our customers. We drive our business forward with a passion for success and a continual focus on performance, quality and technical innovation. We're growing our business in all areas and this means we're growing our team of talent as well.
If you want to learn how you can join us on our mission, you can connect with us on our career page at www.randysworldwide.com.
