Car Enthusiasts in Modesto, California, Trust Gearstar Performance Transmissions for a Custom-Built NAG1

By Fiona Vernon

Gearheads who are passionate about massaging maximum performance out of a wide variety of vehicles have usually been interested in cars most of their lives. A classic car must be well taken care of to keep it at maximum performance, which is easy with good support and superior road quality, found from Modesto, California, to Dallas, Texas. Car fanatics typically have their favorite vehicles with the modifications they love to engines and high-performance manual or automatic transmissions, and those who love them a Dodge Charger also found a love in the beast of a NAG1 transmission. Any car enthusiast from Chicago, Illinois, to Baltimore, Maryland, know that Gearstar Performance Transmissions offers unrivaled craftsmanship in their GM, Ford, and Mopar performance transmissions. This street rod transmission company has been providing impressive performance with their custom-built transmissions for over 20 years with no signs of backing down!

The benefits that a NAG1 transmission can give include increased shift control, gas mileage, service life, and lowered maintenance costs, in addition to improved step-ups through its five gears. It can readily be identified by a round 13-way connector near the front corner of the transmission pan. Gearstar Performance Transmissions is well-known among individuals from Dallas to Chicago as a street rod transmission builder that can be trusted with their baby, whether it’s a 3.6 Dodge Challenger or a ’71 Barracuda. They offer custom built transmissions that meet the exact specifications each client requests with the highest quality US made parts. Furthermore, only one of five proficient technicians at Gearstar is assigned to each project from beginning to end to ensure that each step is analyzed and completed in detail. Whether it’s a GM, Mopar, or Ford performance transmission, each one is then DYNO tested the equivalent of 100 miles before ever leaving their facility to make sure of its perfect working condition. Customers love this aspect, and Jeff O. had this to say:

“Absolutely the best. A company that truly cares about their customers and about the products they produce. Zack the owner is one of the most helpful people I have ever had the pleasure of doing business with. Highly suggested for all your transmission needs.”


Motorheads from Modesto to Baltimore who have modified their baby and boast a 5.7L or larger HEMI must consider adding a NAG1 transmission custom built by Gearstar Performance Transmission. This monster of a transmission will ensure that the powertrain of any modified muscle car will hold up to the demands placed on it. Many hotrodders don’t give credit where it’s due since the NAG1 transmission is older and slightly dated, but it is a beast that boasts quick shifting. This high-performance automatic Mopar performance transmission can be found in many Chrysler products and is an electronically controlled 5-speed with a lock-up clutch in the torque converter. The fifth gear is designed to be an overdrive with a high-speed ratio, and the ratios for the gear stages are obtained by three planetary gear sets. People who have worked with Gearstar never go anywhere else. Cody Sadler had this to say:

“I could not be happier with the NAG1 transmission and 3200 stall converter I had built by Gearstar Performance Transmission for my 300 Srt8. Shifts great, nice and firm. I highly recommend Gearstar to anyone needing or wanting an awesome transmission. The customer service was great as well. Zack is one hell of a guy. I can’t say enough good things about Gearstar and the wonderful transmissions they are building.”

People from Baltimore, Maryland, to Dallas, Texas, who have trusted Gearstar Performance Transmissions’ impressive reputation can attest to the quality that they provide in their high performance automatic transmissions. Not only can this street rod transmission builder custom build Ford, GM, and Mopar performance transmissions exactly to the specifications for each client’s vehicle from Modesto, California, to Chicago, Illinois, but they also excel at the way in which they complete each task. Whether a customer needs a TH350 for their Chevelle or a NAG1 for their Cuda, Gearstar Performance Transmissions gets every job done perfectly the first time!

Gearstar Performance Transmissions
132 N. Howard St.
Akron, Ohio 44308
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