ATO Performance Transmission

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3257 Monier Cir Ste E
Rancho Cordova, CA 95742

ATO Performance Transmission, formerly known as Advanced Transmission Operations, is a specialized automatic transmission service located in Rancho Cordova, California. Owned and operated by Jim Galati, who boasts over 40 years of experience, the company focuses on street performance, drag racing, diesel performance, towing, and off-road competition for domestic vehicles.

The small team at ATO, consisting of Jim and Jeff, handles all aspects of transmission assembly and preparation, ensuring high-quality craftsmanship. Their dedication to customer satisfaction is reflected in their reputation, as evidenced by their selection to build a custom 48RE transmission for a 2007 Dodge Mega Cab dually diesel 4WD, specifically designed for towing.

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5.010 reviews
Gort G.
7/14/2025

I've driven my Ram 19 years and 200k miles worth of amazing places. Thanks Jim for your great knowledge, and honest service rebuilding my 48RE. The transmission works like a dream and I'm back...

Curtis D.
5/24/2024

What a clean and well organized facility. The attention to detail is second to none and the hand built transmission dyno insures that the transmission I put in my Corvette will exceed my...

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Aaron F.
2/4/2022

Literally built the only transmission I've ever had in my life that has stood this much abuse. Now let me warn you, a company like this is going to charge you, and it's going to take time for the...

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Sean D.
2/23/2013

ATO has moved to 3257 Monier Circle, Ste. E in Rancho Cordova, Ca. This is the type of business you always hope you find when looking for services that you need. ATO is family owned, 45 years...

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SpaceDevil X.
11/19/2014

I've spent an entire year researching and locating all options for a transmission replacement to my aging 48re and I have never felt more secure in a decision that I made regarding major mechanic...

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