Core Repair · Craig, CO
Transmission Repair in Craig, CO
Slipping, hard shifts, or a leak? We diagnose before we recommend anything. Sometimes it is a fluid service, not a rebuild. Either way, you get the truth and a written estimate first.
Average rating
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Years, since 1985
Mile warranty
Quick answer
What are the signs of transmission trouble?
Watch for slipping gears, delayed or hard shifts, shuddering under light acceleration, grinding or whining, a burning smell, or red fluid under the vehicle. Caught early, a fluid and filter service may be all you need; ignored, the same symptoms can end in a rebuild. We diagnose first, then put the estimate in writing.
What's included
- Transmission fluid and filter service
- Computer scan and road test before any recommendation
- Leak diagnosis and seal repair
- Shift-fault diagnosis: sensors, codes, and fluid condition
- Clutch replacement (manual)
- Rebuild and replacement when needed
How we diagnose transmission problems
Every transmission job starts the same way: we listen to what your vehicle is doing, then prove it. A computer scan reads the codes and live data the transmission's own sensors report, and a road test lets a technician feel how it shifts under real load, not just in the parking lot.
Then we look at the physical evidence. Fluid tells an honest story: healthy fluid is red and clean, while dark or burnt-smelling fluid points to heat and wear. We check the pan, the cooler lines, and the seals for leaks, and we photograph what we find as part of our free digital inspection, so you see exactly what we see.
Only then do we recommend anything. You get a written estimate that names the actual problem and what fixing it costs, before any work begins.
Service, repair, or rebuild: how we decide
Most transmission complaints land in one of three tiers, and the price difference between them is enormous. If the fluid has degraded but the internals are healthy, a fluid and filter service, $150 to $300, restores shift quality and protects the unit. Caught early, plenty of slipping and hard-shift complaints end right here.
If the fault is a leaking seal, a failed sensor, or a worn clutch on a manual, a targeted repair fixes it without opening the transmission. A clutch job typically runs $800 to $1,800; seal and sensor work is quoted from the diagnosis.
Only when there is internal wear or damage does a rebuild or replacement make sense. A rebuild renews the worn internals of your existing unit; a replacement swaps it entirely. We put both options and their costs side by side for your specific vehicle, with qualifying work covered by our 5-year / 50,000-mile warranty. What we will not do is recommend the big job before the diagnosis proves you need it.
Built for the Yampa Valley
Towing over the passes and hauling through hunting season load a transmission harder than flatland driving ever will. We have rescued more than one road trip, including a graduation crew limping home from Moab.
Why Chapman's for this
- Free digital inspection with photos
- Transparent pricing, quoted before we start
- Loaner cars, shuttle & pickup
- 5yr / 50,000-mile warranty
What customers say
“Blew a transmission pump seal passing through. The staff were welcoming to out-of-staters and got me sorted. 110% recommend anyone traveling through this area.”
Landon B.
Verified customer
“Thank you Brad and the crew for helping my grandson and his friends with transmission trouble on their graduation road trip home from Moab. You saved their trip.”
Judy R.
Verified customer
“Full clutch kit replacement at a great price. Professional from start to finish.”
Morgan
Verified customer
Frequently asked questions
A transmission fluid service runs $150 to $300 and a clutch job is typically $800 to $1,800; a full rebuild costs more and is quoted after diagnosis. We diagnose first and give you a written estimate before any work, so you only ever pay for what your transmission actually needs.
Often, if you catch it early. Low or degraded fluid, a failing sensor, or a leak can all cause slipping and cost far less to put right than a rebuild. That is exactly why we test before recommending the big job. Sometimes the fix really is a fluid service.
Follow the interval in your owner's manual; it varies widely by make and model. AAA notes that towing and hauling heavy loads create extra heat, and heat is what wears fluid out, so trucks that tow around the Yampa Valley often need service sooner. We can check the fluid's level and condition and show you what we find before recommending anything.
Both, depending on what the diagnosis shows. A rebuild replaces the worn internals of your existing unit; replacement swaps in a different transmission. We give you an honest comparison of the options and costs for your specific vehicle before you decide anything.
It depends on the job. A fluid service takes a fraction of the time a rebuild does, because a rebuild means removing, disassembling, and reassembling the unit. The written estimate includes the expected time, and a free loaner covers you while the bigger jobs are on the lift.
Yes. We replace clutches and repair manual transmissions on cars, trucks, and 4x4s. If the pedal feels different, the clutch slips under load, or gears grind on the way in, have it checked before it strands you somewhere remote.
Yes. We service diesel truck transmissions, including the Allison units behind GM's Duramax. A diesel that tows works its transmission as hard as its engine, so fluid condition matters even more on these trucks.
It is risky. Slipping creates heat, and heat accelerates the damage, so a problem that starts as a service can become a rebuild if you keep loading it. On the valley's grades that happens faster. Get it checked before the next long drive or heavy tow.
Yes. Qualifying transmission repairs carry our 5-year / 50,000-mile parts-and-labor warranty. A rebuild is a serious investment, and coverage that long means the shop that built it answers for it, years down the road.
Page last reviewed August 27, 2026.
Sources: AAA: towing and hauling heavy loads create extra transmission heat
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