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Overview
About this business
AC Transmission is an automotive transmission repair business serving Denver, Colorado. AC Transmission provides service services including automatic and manual transmission repair, rebuilds, diagnostics, clutch repair and replacement, drivetrain and differential repair, and transmission inspections. The business services both domestic and foreign vehicles, including light and heavy duty trucks, SUVs, 4x4s, and motor homes. AC Transmission uses certified technicians with decades of experience and offers services for diesel transmissions as well.
Transmission Shop
Services
Services and categories listed for this business.
Automatic Transmission RepairManual Transmission RepairTransmission RebuildsTransmission DiagnosticsClutch Repair and ReplacementDrivetrain and Differential RepairDiesel Transmission RepairTransmission Inspections4WD Transmission RepairBrakes ServiceTune Up
What types of transmissions does AC Transmission service?+
AC Transmission services automatic, manual, and diesel transmissions for domestic and foreign vehicles, including light and heavy duty trucks, SUVs, 4x4s, and motor homes.
Does AC Transmission repair clutches?+
Yes, AC Transmission repairs and replaces clutches using LUK brand clutches and also services clutch linkage and hydraulics.
Does AC Transmission service both domestic and foreign vehicles?+
Yes, AC Transmission services a wide range of domestic and foreign vehicles including brands like Ford, Chevrolet, Dodge, RAM, GMC, Cadillac, Jeep, Chrysler, Buick, Lincoln, and German vehicles.
Are the technicians at AC Transmission certified?+
Yes, AC Transmission employs certified technicians who receive ongoing training to handle modern transmission repairs and rebuilds.
I stopped by recently because my car was having an electrical issue that turned out to be related to the alternator. Chris and Derek were both extremely helpful and took the time to point me in the right direction even though it wasn’t exactly a transmission problem.
They were honest, easy to talk to, and didn’t try to push anything I didn’t need. It’s always a relief finding a shop that treats people fairly. Really appreciate the help from the AC Transmission team.
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Cindy Rivera
Mar 9, 2026
★★★★★5.0
This family owned business made The stress of a replacement of a transmission so easy handled everything so professionally really handled everything so I would not have to worry or have any added stress dealing with warranty company. They were so phenomenal. And will definitely use them Again, and recommend them to family and friends. This is The best transmission shop to go to the best
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Bruce Engle
Jan 23, 2026
★★★★★5.0
I recently purchased a classic 1995 Ford F-250 with 172k miles that had been through the wringer as an East Coast snowplow truck. After doing a ton of research, I called AC Transmission and they took the time to walk me through exactly what they would do, including best/worst case scenarios and a realistic price range.
From the first phone call I could tell they were passionate, knowledgeable, and genuinely excited to help. Their communication throughout the process was excellent. During disassembly of transmission they showed me what was wrong and what needed fixed (basically everything). Their overall professionalism and quick turnaround...I recently purchased a classic 1995 Ford F-250 with 172k miles that had been through the wringer as an East Coast snowplow truck. After doing a ton of research, I called AC Transmission and they took the time to walk me through exactly what they would do, including best/worst case scenarios and a realistic price range.
From the first phone call I could tell they were passionate, knowledgeable, and genuinely excited to help. Their communication throughout the process was excellent. During disassembly of transmission they showed me what was wrong and what needed fixed (basically everything). Their overall professionalism and quick turnaround were also stellar.
It ended up needing a full rebuild — they rebuilt the entire transmission, used an NOS original case from their inventory, and essentially replaced everything. They had it back up and running in about a week. I drove it 90 miles home and it performed like a brand-new truck.
Huge thanks to AC Transmission and the entire team. Highly recommend!
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Wm L
Feb 2, 2026
★★★★★5.0
Wow, Amazing service, above and beyond my expectations.
I brought in my Grand Cherokee with a troubling driveline noise that my usual mechanic couldn't identify. The guys at AC diagnosed it, at no charge, as a bad driveshaft. They could have easily told me it was several more expensive issues and I wouldn't have known better, but they were straightforward about it all.
After the repair was completed, I noticed a new driveline issue, so I brought it back the next day. They didn't give me any hassles at all, checked it out, and isolated it to a defective part, so they replaced it again. This time it's as good as new!
I'm beyond impressed wi...Wow, Amazing service, above and beyond my expectations.
I brought in my Grand Cherokee with a troubling driveline noise that my usual mechanic couldn't identify. The guys at AC diagnosed it, at no charge, as a bad driveshaft. They could have easily told me it was several more expensive issues and I wouldn't have known better, but they were straightforward about it all.
After the repair was completed, I noticed a new driveline issue, so I brought it back the next day. They didn't give me any hassles at all, checked it out, and isolated it to a defective part, so they replaced it again. This time it's as good as new!
I'm beyond impressed with their honesty and commitment to doing the job right, and at a price less than I expected.
I highly recommend AC Transmission for any auto repairs. I'll definitely be back if I ever need any work done
M
Mario Ruiz
Feb 7, 2026
★★★★★5.0
I can’t say enough great things about AC Transmission—they truly exceeded every expectation!
From my very first phone call with Mike, who was incredibly friendly, knowledgeable, and felt like chatting with a buddy, I knew I was in good hands. The entire team was professional, upfront, and transparent about everything, which I really appreciate in this industry.
They demonstrated deep expertise with my Ford and its transmission issues right away, putting me completely at ease leaving my truck with them. They took the time to clearly explain the problems, walk me through their repair plan, and answer all my questions—no rush, no pressure.
Compa...I can’t say enough great things about AC Transmission—they truly exceeded every expectation!
From my very first phone call with Mike, who was incredibly friendly, knowledgeable, and felt like chatting with a buddy, I knew I was in good hands. The entire team was professional, upfront, and transparent about everything, which I really appreciate in this industry.
They demonstrated deep expertise with my Ford and its transmission issues right away, putting me completely at ease leaving my truck with them. They took the time to clearly explain the problems, walk me through their repair plan, and answer all my questions—no rush, no pressure.
Compared to the Ford dealership’s quote (sky-high price and a ridiculous 2-month wait), AC Transmission saved me a significant amount of money and had my truck fully rebuilt and back on the road in just 5 days—from drop-off to pickup. That kind of speed and quality is hard to beat!
These guys are the real deal, honest, skilled, and genuinely customer-focused. If your vehicle is having transmission trouble (or any issues), do yourself a favor and give AC Transmission a call. I promise you’ll be taken care of exceptionally well. Highly, highly recommended!
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