| Business | Phone |
| Aamco Transmissions 162 King St E, Oshawa L1H 1B6 | (905) 720-2222 |
| Allison Automatic Transmission 720 Wilson Rd S, Oshawa L1H 6E8 | (905) 432-3838 |
| Mister Transmission 66 Bond St W, Oshawa L1G 1A5 | (905) 579-0700 |
| Otis Gear 1333 Boundary Rd #15, Oshawa L1J 6Z7 | (905) 721-8041 |
| T & T Enterprise 1333 Boundary Rd #18, Oshawa L1J 6Z7 | (905) 728-3199 |
| Transmission Place 385 Bloor St W #4, Oshawa L1J 5Y5 | (905) 576-1021 |
| Universal Transmission 190 Waterloo St #4, Oshawa L1H 8A7 | (905) 571-3438 |