Transmission Rebuilds
Rebuilt and resealed, then road tested.
Slipping gears · Hard shifts · Warning light
Denver’s most honest transmission shop, in business since 1965
Free diagnosis, straight answers and transmission repairs and rebuilds done right.
Serving Denver & the north metro
Free towing on major repairs in the Denver metro
Imagine smooth shifts and a repair you actually understood.
Locally owned
Independent transmission specialists
Address
6780 Federal Blvd, Denver, CO
Phone
What can we help with?
Choose the job
Pick a category, then reach out to schedule.
Automatic & Manual Repair
Slipping, hard shifts and leaks diagnosed and fixed.
Clutches
Clutch kits, flywheels and hydraulics.
Free Diagnosis
Road test, code scan and safety inspection.
Free Towing
On major repairs in the Denver metro.
Brakes & General Repair
Brakes, engine, tune-ups and cooling systems.
How it works
Test-Diagnose-Repair Process
Four clear steps from first call to finished job.
1
Bring it in or call
Describe the slipping, noise or warning light.
2
Free diagnosis
Road test, computer code scan and safety inspection.
3
Straight answer
You hear what’s wrong and what it costs before work starts.
4
Repair or rebuild
Certified technicians fix it and road test it again.
Outcomes
The work we do
The kinds of jobs we handle every week.
Why us
Why neighbors choose AC Transmission
- Doing business since 1965
- Free diagnosis and road test
- Free towing on major repairs (Denver metro)
- Financing available
- Automatic, manual, 4WD and diesel
- Domestic and foreign vehicles
Service area
Where we work
DenverWestminsterThorntonNorthglennArvadaCommerce CityFederal Heights
FAQ
Quick answers
Is the diagnosis really free?
Yes: technician road test, computer code diagnostic and vehicle safety inspection.
Do you tow?
Free towing on all major repairs in the Denver metro area.
Do you do more than transmissions?
Yes: brakes, engine, tune-ups, steering, suspension and cooling systems.
What are your hours?
Monday to Friday, 7:00am to 5:30pm, at 6780 Federal Blvd.
Transmission acting up? Get a free diagnosis.
AC Transmission Center · 6780 Federal Blvd, Denver, CO · actransmission@yahoo.com