GMC Transmission Repair


Driving a GMC delivers peace of mind due to their high standards when it comes to safety. Their vehicles come equipped with top engineered safety technologies, such as air bags, rear view vision and lane departure warnings. Whether driving a GMC truck, crossover, SUV or van you can rest assured you’re in a reliable vehicle.

Regardless of the age of your car, our expert mechanics will take care of it with the attention and detail it warrants. Bring your vehicle to Uncle Al’s Auto Repair and have our specially trained GMC repair technicians maintain it and keep it running its best!

ATRA Certified GMC Transmission Repair

Uncle Al’s Auto Repair has been providing top quality Honda auto repairs and auto mechanic services in Gladstone – Clackamas and the surrounding Miluakie Oregon area communities for more than 14 years. Our ASE Certified Technicians get brand specific training to perform complete GMC repair and maintenance services to keep your car on the road. We have GMC specific parts, diagnostic tools and equipment, making us your friendly dealership alternative! We are so confident in our transmission service that all of our GMC repair services are backed by a 2 year/24,000 mile warranty, giving you the satisfaction of knowing your car is in expert hands.

We invite you to stop by our shop today to learn more about how we can keep your GMC running at peak performance, year in and year out! At Unce Al’s Auto Repair, our customer’s satisfaction always comes first!


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We service all GMC models

C and K Series | Sprint | Caballero | S-15 | Sierra | Syclone | Sonoma |Canyon | Rally | Vandura | Safari | Savana | Suburban | Jimmy | S-15 Jimmy | Typhoon | Yukon | Envoy | Yukon XL | Envoy | Acadia | Terrain

Important Consumer Information Regarding GMC Transmission Repair:

General Motors has developed a wide variety of transmissions and transaxles for their vehicles. For accurate phone support, it is necessary to have the year, make, model and engine size of the vehicle to correctly identify your transmission.

4L60E Transmission:
4L60E Transmissions – With these transmissions there are several points of failure. At Uncle Al’s Auto Repair and Auto Care we do all the upgrades available. Some of these upgrades are the sun shell splines, as these can strip off, or the hub containing the splines break off causing you to loose 2nd, 4th and reverse gears. All GMC 4L60E Transmissions at Uncle Al’s Auto Repair get a new hardened sun shell with every rebuild.

Another common problem is the 3/4 clutches and 2/4 bands get burned up. At Uncle Al’s Auto Repair we use high energy lined clutches and bands to ensure a long life from these components. These are just a few of the many upgrades we do on every GMC transmission that comes through our shop. At Uncle Al’s Auto Repair we want to make sure that our customers are able to enjoy their vehicles for many more miles to come.

GMC Transmission Repair in Gladstone OR

Serving Customers in the Greater Portland OR area:
Gladstone OR | Milwaukie OR | Molalla OR | Oregon City OR | West Linn OR | Lake Oswego OR | Canby OR
Wilsonville OR | Clackamas OR | Happy Valley OR | Portland OR