Services

Don’t tow it – we offer service calls!

Did you know? Many Allison issues can be fixed onsite, so let’s find out what your rig needs. We’ll drive to your vehicle, hook up our Allison Diagnostic tools, pull out our test boxes to verify the issue, and if applicable, we’ll run a Transhealth Report. Rest easy with our transparent reporting and repair options. In most cases we’ll provide an estimate onsite. If time and tools allow, we can offer repair services onsite, and if not, we’ll discuss options to get you and your rig back into production. To get started, fill out the contact form and we’ll be in touch right away. Learn more about our 24×7 Mobile Services.

Local & emergency delivery with mechanic.

Local Delivery

Ground Shipping is included in the base price of part ordered. Company discretion if part will be shipped 3rd party or delivered by staff to the local area. Oregon and Washington.

Emergency Delivery

Need an emergency order? We work with local suppliers to get the best deal and fastest delivery possible. An emergency delivery means we will deliver the part same day, often within a 2-6 hour window, depending on the distance to location.

Express Overnight Delivery

Call us for a quote! Please note we cannot guarantee express shipping will be delivered within an expected window and is non-refundable. Call us and we’ll figure out the best way to get your part delivered efficiently and safely.

Please fill out the contact form below and let us know what you need. We’ll get back to you in a few minutes!

Learn more about our parts delivery services.

We also offer Mail-In services.

Need a full transmission overhaul?

Reaction Force offers in-house rebuilds for industrial automatic and powershift transmissions, including Allison and other heavy-duty brands. Every overhaul is performed by expert technicians and bench-tested to meet or exceed OEM performance specs.

Thinking about upgrading from a manual transmission?

We can help you spec and install a new or remanufactured Allison automatic transmission tailored to your application — whether you’re re-gearing, modernizing your fleet, or building something custom.

From fleet retrofits to one-off builds, we’ll spec the right transmission for your project — new or rebuilt, with or without PTO — and make sure it performs reliably under load.

Need to know what’s wrong before you commit to a rebuild or replacement?

Our Allison transmission electronics diagnostics help you make the right call — fast.

We offer bench testing and diagnostic services in-house to keep costs low and turnaround times quick. This service is FREE for your electronics— you just cover the cost of shipping. If your unit can’t be removed from the vehicle, we also offer Mobile Diagnostics (drive time is billed separately). 

With nearly 20 years of experience solving Allison-specific issues, we give you a reliable diagnosis up front — saving you time, money, and unnecessary repairs.

What’s Included in Our Diagnostics

  • Engine & Transmission Inspection
  • Electrical System Testing
  • DOT Inspection
  • Quote for Repair or Rebuild (if in scope)

     

Let’s get you back on the road — fast. Fill out the contact form below to get started.

Modern trucks and heavy equipment rely on advanced electrical systems more than ever.

From Allison Transmission electronics to hybrid power setups, electrical issues can bring productivity to a halt — and they’re often difficult to diagnose without the right tools and expertise.

At Reaction Force, we specialize in diagnosing and repairing complex electrical and charging system issues in both on-highway and off-highway vehicles. Whether you’re dealing with intermittent battery failure, charging problems, or system-wide malfunctions, we’ll help you find the issue fast — and fix it right.

Electrical & Charging Services Include

  • Allison Transmission Computer Recalibrations
  • Alternator Replacement
  • Battery Replacement
  • Charging System Testing and Replacement
  • Electrical System Inspection
  • Hybrid Power Systems
  • Starter Replacement
  • Wiring Diagnostics, Troubleshooting & Repair

Keep your systems powered, compliant, and on the move. Contact Reaction Force for expert diagnostics and repair today.

Looking to boost performance?

Our repower services increase horsepower and torque ratings to improve efficiency, reliability, and output across your equipment lineup.

We’ll help you match the right Allison transmission to your upgraded powerplant — whether you’re running a new engine or modifying an existing setup. Every spec is designed to handle the extra load and keep your operation running strong under pressure.

Don’t overlook the backbone of your drivetrain.

Reaction Force provides complete differential, axle, and driveline services to keep your truck or heavy equipment DOT-compliant and road-ready.

We offer:

  • In-house rebuilds for off-highway equipment differentials and axles (CAT, ZF, Funk, Carraro, Kessler)
  • A full inventory of remanufactured axle assemblies and differentials for heavy trucks, including Eaton, Meritor, and Dana Spicer

Whether you’re dealing with worn u-joints, leaking seals, or a failing carrier bearing, our team gets the job done fast — and done right.

Services Include

  • Differential Repair & Replacement
  • Axle Wheel Seal Service
  • King Pin Replacement
  • U-Joint & Yoke Replacement
  • Carrier Bearing Replacement

Need install or removal? Check out our R&R Services for support in your shop or yard.

Keep your fleet running stronger, longer with preventative maintenance and repair services tailored for commercial trucks and heavy equipment. Whether you manage two vehicles or two hundred, Reaction Force offers customized fleet service programs to reduce downtime, extend equipment life, and keep you DOT-compliant.

We provide scheduled service, diagnostics, and repairs for a wide range of systems — including transmissions, drivelines, electrical systems, hydraulics, and more. Our team works around your schedule to ensure minimal disruption to your operations.

Fleet Maintenance Services Include

  • Preventative Maintenance Scheduling
  • DOT Inspections & Compliance Services
  • Transmission & PTO Diagnostics
  • Electrical System Checks
  • Driveline & Suspension Inspection
  • Fluid Changes & Filter Replacements
  • Mobile Service Available for On-Site Repairs

From work trucks to off-road equipment, we’ll help you stay ahead of costly breakdowns. Reach out to set up a custom service plan for your fleet.

Need a PTO (Power Take-Off) but stuck with a non-PTO Allison transmission?

We offer expert PTO conversion services to adapt your current setup — no full transmission replacement required.

Whether you’re adding hydraulics, pumps, or other auxiliary equipment, we’ll spec and install the right parts to enable PTO functionality safely and efficiently. All conversions are backed by our in-house Allison transmission expertise and built to handle real-world workloads.

From dump trucks to wood processors, your PTO and hydraulic systems are essential to getting the job done right. 

Reaction Force offers complete PTO rebuild, repair, and installation services for industrial trucks, off-highway equipment, and specialty machinery.

We service most major brands including:

  • Chelsea, Muncie, Hydreco, Bazares (on-highway)
  • CAT, Twin Disc, TransFluid, John Deere Powertrain (off-highway)

Need a custom hydraulic solution? Our team partners with local hydraulic pump suppliers to design and install hydraulic systems tailored to your application.

Whether your equipment is working in the oil field, on the water, or on the slopes, we’ve got the expertise to keep your PTO system running strong.

PTO & Hydraulic Services Include

  • PTO Troubleshooting
  • PTO Installation
  • Hydraulic Pump Installation

Let us help spec out and service the right setup for your equipment — from logging operations to ski lifts.

When your transmission, axle, or PTO fails, our R & R services provide a fast, efficient path to getting your truck or equipment back to work. Reaction Force offers professional removal, inspection, and in-house repair or rebuild for most drivetrain and hydraulic components.

Our experienced team will remove the damaged unit, perform a detailed diagnosis in our facility, and repair or rebuild it to OEM standards. Once complete, we reinstall and test the unit to ensure full operational performance — saving you the cost of a full replacement when possible.

R & R Services Available For:

  • Allison Automatic Transmissions
  • Powershift Transmissions
  • Differentials & Axles
  • Power Take-Offs (PTOs)
  • Hydraulic Pumps
  • Starters, Alternators & Charging Systems

We handle the heavy lifting, so you don’t have to. If it turns, drives, or shifts — we’ll fix it. Contact us for pricing or to schedule your R&R today.

Reaction Force offers certified DOT inspections to help you stay compliant with federal regulations and avoid costly downtime or violations. Whether you manage a single vehicle or an entire fleet, we ensure your truck or equipment meets all Department of Transportation safety standards.

Our experienced techs perform thorough, checklist-based inspections covering brakes, lights, tires, suspension, steering, fuel systems, electrical, and more. We also check for fluid leaks, structural issues, and wear that could result in a failed roadside inspection.

DOT Inspection Services Include

  • Annual DOT Inspections
  • Pre-Trip & Safety Inspections
  • Brake System Evaluations
  • Lighting & Electrical Checks
  • Suspension & Steering Review
  • Comprehensive Inspection Report

Need repairs after an inspection? We can handle those too — from quick fixes to full drivetrain rebuilds.

Book your DOT inspection today and keep your truck legal, reliable, and on the road.

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