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Claim This BusinessAC Transmission Golden holds a 4.6-star rating across 165 customer reviews, reflecting more than six decades of collective experience serving the Golden area and neighboring communities including Lakewood, Arvada, and Morrison. This ASE and ATRA certified shop specializes in transmission repair and general auto repair for both foreign and domestic vehicles, including cars, trucks, commercial fleet vehicles, diesel vehicles, and RVs. The family-owned business has completed over 30,000 transmission repairs and earned more than 10,000 satisfied customers since opening their doors.
What distinguishes AC Transmission Golden from other transmission shops is their meticulous approach to transmission service. Unlike shops that flush fluid, which can loosen cached debris inside the transmission, their team heats the fluid, drains it thoroughly overnight, removes the pan to replace the filter, then performs a second drain after running the vehicle. They also carry specialized diesel transmission parts including multi-disc torque converters and Sonnax upgrades, making them one of the few shops in the Denver metro area equipped to handle performance diesel upgrades and complex diesel transmission repairs.
Customer reviews highlight specific technicians by name. Brian managed a transmission fluid service on a high-mileage Corvette for $450, explaining each step of the thorough overnight process. When another customer dropped off an F-150 with a 10R80 transmission that had overheated in stop-and-go traffic, they diagnosed the issue, topped off the fluid, and waived any charges. A third reviewer recalled an emergency situation when her keys broke at a neighboring gas station, the shop crew searched for replacement batteries and screws, helping her get home safely at no charge.
165 reviewers award AC Transmission Golden an average 4.6 stars. Positive reviews consistently praise the shop's honesty and transparency, with Brian named multiple times for his thorough explanations. Of four detailed reviews, three award five stars citing fair pricing and refusing to charge for no-issue diagnostics. One one-star review mentions an $8,000 transmission quote.
| Sunday | Closed |
| Monday | 7 AM–6 PM |
| Tuesday | 7 AM–6 PM |
| Wednesday | 7 AM–6 PM |
| ThursdayToday | 7 AM–6 PM |
| Friday | 7 AM–6 PM |
| Saturday | Closed |
Complete transmission diagnostics, maintenance, and full replacement services for automatic and standard transmissions in foreign and domestic vehicles.
Two-step drain-and-fill process: overnight drain followed by filter replacement and second drain for thorough transmission maintenance.
Driveshaft, differential, CV joint, and axle services for front-wheel, rear-wheel, and four-wheel drive vehicles.
Performance diesel upgrades including multi-disc torque converters, Sonnax parts, and specialized tuning for diesel trucks and SUVs.
Brakes, starters, water pumps, alternators, and comprehensive vehicle diagnostics for most domestic and foreign vehicles.
Inspection, adjustment, and replacement services for clutch assemblies and related components.