| Business | Phone |
| Aamco Transmissions 624 E State St, Hammond 46320 | (219) 932-8770 |
| Bonded Transmissions 1940 E Summer St, Hammond 46320 | (219) 931-5232 |
| Calumet Automatic Transmission 1234 E 150th St, Hammond 46327 | (219) 931-5232 |
| Multistate Transmissions 5604 S Hohman Ave, Hammond 46320 | (219) 931-3133 |