Auto Repair | Portage, IN - National Transmission Inc.
carr National Transmission, Inc.
Man repairing the underside of a truck

No job's too big or small

Getting you back on the road fast

When your car is at its least reliable, trust the experts at National Transmission Inc. We offer service, repair and rebuilds for both foreign and domestic vehicles. No matter how big the job, we're always there when you need us. That's our promise to you.

Our repair services

- Automatic and manual transmissions

- Clutches

- Rear ends

- Transfer cases

- Fly wheels

- Axles

- Drive shafts

- 4x4s and front-wheel drive

Contact one of our repair specialists


At National Transmission Inc, we perform prompt, accurate diagnoses and reliable repairs. You'll get a free road test and computer analysis with any repair. We also offer 24-hour towing service.

Get a FREE computer analysis with any repair. Come in today to learn more.

Stop by today to experience our superior service

We're your source for total vehicle care in Portage. In addition to repair services, we offer brake service, maintenance, towing and expert transmission service.