Tim's AATCO Transmissions

Tim's AATCO Transmissions repairs and rebuilds automatic and manual transmissions, along with clutch systems, transfer cases and differentials. The shop works on most makes and models, foreign and domestic, and also takes heavy-duty builds and work for fleets and dealerships. Many jobs start with a free diagnostic, and the shop can often give a rough idea of the problem and cost over the phone.

The shop gives an out-the-door quote for the full job before any work begins. When a rebuild is needed, it installs upgrades that it says often leave a transmission stronger than factory. The shop has been locally owned since 1989 and serves the Portland metro area. It is at Southwest Millikan Way in Beaverton, and it lists weekday hours of 8 to 5, with after-hours calls handled by phone. After work is finished, customers are invited back for a 10-day checkup.