Trust your car or truck to the professionals at National Transmission Inc. Our team of transmission experts both service and repair transmissions in foreign and domestic vehicles. We're locally-owned and operated, and we are serious about your satisfaction. Get the affordable service you deserve and the reliable care your car needs to run smoothly and safely. We're your one-stop shop for vehicle repairs and maintenance, offering services ranging from oil changes to 24-hour towing. Bring your car in today and experience the difference! 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. 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. 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.