TRANSMISSIONS
Transmission Services:
- Thorough transmission fluid inspection and replacement to ensure proper lubrication and cooling of transmission components.
- Transmission fluid flush to remove contaminants and debris that may affect transmission performance.
- Replacement of transmission filter to maintain clean fluid circulation and prevent clogs.
- Inspection and adjustment of transmission bands and clutch packs for proper engagement and shifting.
- Transmission fluid leak diagnosis and repair to prevent fluid loss and potential damage to transmission components.
- Transmission fluid level check and top-up to ensure proper fluid levels for optimal transmission operation.
- Transmission fluid condition check using diagnostic tools to assess fluid quality and potential issues.
- Transmission diagnostic scan to identify trouble codes and diagnose transmission-related issues.
- Transmission rebuild or overhaul services to restore transmission functionality and extend its lifespan.
The transmission on a heavy-duty diesel semi truck is one of the most complex and most critical components in the entire drivetrain. It's responsible for managing the enormous torque output of a diesel engine and delivering it to the drive axles efficiently across a wide range of speeds, loads, and road conditions, shift after shift, mile after mile. When a transmission starts to have problems, ignoring it is never the answer. What starts as a minor issue can quickly become a complete failure that leaves your truck parked and your operation at a standstill. At Rolling Smoke Diesel Repair, we offer comprehensive transmission services for heavy-duty diesel trucks, from routine maintenance to full rebuilds and we have the expertise and equipment to handle both manual and automated manual transmissions.
Our Heavy-Duty Transmission Services:
- Transmission Diagnostics: We use OEM-level diagnostic tools to interface with the transmission control module, pull fault codes, analyze shift data, and evaluate component wear before any teardown or parts replacement begins. On manual transmissions, we combine electronic data with physical inspection and road testing to pinpoint the problem accurately.
- Routine Maintenance: Transmission fluid degrades under the heat and stress of constant operation. We perform fluid and filter service on schedule, inspect seals and breathers for leaks, and check linkage components to keep your transmission running cleanly. Consistent maintenance is the most effective way to extend transmission life and avoid expensive repairs.
- Transmission Repairs: From leaking seals and faulty solenoids to worn synchronizers, damaged gear sets, and failed bearings, our technicians handle the full range of heavy-duty transmission repairs using commercial-grade components and we address the root cause, not just the symptom.
- Transmission Rebuilds:
When a transmission is worn beyond practical component repair, a complete rebuild returns it to factory specifications with quality replacement parts and gets you back on the road with confidence.
- Transmission Replacement: When a rebuild isn't the right call, we offer replacement with quality remanufactured or new units, handling the complete swap including all electronics integration and post-installation calibration.
- AMT Service: Automated manual transmissions require specialized knowledge and equipment to service correctly. We're experienced with Eaton Fuller Advantage, Allison, Volvo I-Shift, Mack mDrive, and similar systems — including clutch calibration, shift quality diagnosis, and actuator replacement.
Warning Signs Your Transmission Needs Attention
- Slipping, hard, delayed, or erratic shifts
- Grinding, whining, or clunking during gear changes
- Transmission warning lights or fault codes
- Running hotter than normal or fluid leaks
- Sluggish engagement or reduced pulling power on grades
Enjoy a Smoother Ride
We work on the transmissions found in working commercial trucks, we diagnose correctly before recommending repairs, we use commercial-grade components, and we tell you exactly what it needs and what it costs before we start. No surprises, no unnecessary work.
Contact us today to schedule your transmission service. We're ready to help.

