| Business | Phone |
| Aadvanvo Transmission 810 Ne Hood Ave, Gresham 97030 | (503) 618-7024 |
| Trans-Medic Transmissions 2250 Nw Birdsdale Ave, Gresham 97030 | (503) 666-5299 |
| C R Transmission Inc 150 Nw 20th St, Gresham 97030 | (503) 618-8084 |
| Gresham Transmission Center 1014 Ne Division St, Gresham 97030 | (503) 669-1555 |