At Nationwide Transmission in Flagstaff, AZ, we have the facilities, equipment, and technicians necessary to complete any job, no matter how big or small. When it comes to fleet and diesel trucks, the right people with the correct equipment makes all the difference - we’ll keep your truck reliably on the road, and we’re the fastest, most efficient repair facility in the business. When it comes to trucks this size, and this valuable, cut-rate maintenance and repair simply won’t do; you need professionals, with the tools and equipment necessary to get the job done right.

At Nationwide Transmission in Flagstaff, AZ, we know that fuel contamination is one of the priciest and most problematic issues that may plague a diesel engine. There are a variety of issues that cause contamination in fuel. Knowing these issues will help drivers become aware of fuel contamination and hopefully prevent these issues. 

If you’re running a truck (or trucks) without an auxiliary oil cooler, it may be something you want to consider. Here’s some information on auxiliary oil coolers, what they are, and why they’re a great upgrade, from Nationwide Transmission in Flagstaff, AZ.

The differentials on your Ford, Chevrolet, or Dodge diesel pickup are some of the hardest working components on your truck. At Nationwide Transmission in Flagstaff, AZ, our technicians are experts in maintaining, repairing, and replacing differentials, keeping your truck working reliable just as much as you do.

The differentials on your Ford, Chevrolet, or Dodge diesel pickup are some of the hardest working components on your truck. At Nationwide Transmission in Flagstaff, AZ, our technicians are experts in maintaining, repairing, and replacing differentials, keeping your truck working reliable just as much as you do.

Sometimes a tire goes flat over the course of days, weeks, or even months. A leak like this never has an obvious cause - so why is your tire losing air? From Nationwide Transmission in Flagstaff, AZ, here’s some info on leaky tires.