Rancho Performance Transaxles
“I could not be happier with the quality of the product, the speed and the level of service I received from the company.”
Best Transmission Repair Shops in Fullerton, CA
24 mechanics listed · all 24 in Fullerton · 15 open weekends · 20 rated 4.5+
Data verified October 16, 2026
Oily's Automotive
“As a woman with limited auto maintenance knowledge, getting my car serviced can be an anxiety-inducing experience but I'm happy to report that hasn't been my experience at Oily's!”
Monzon Garage
“I travelled from LA to get necessary smog repairs done to my old land cruiser and now it's running well and passed smog!”
Aamco Transmissions & Total Car Care
“Aamco has amazing service and great deals I'm always 100 percent satisfied with my mechanic there”
Fullerton Transmission
“They handled a massive list of jobs seamlessly: a complete fluid flush (oil, transmission, coolant, rear differential, brake, and power steering), a new radiator, thermostat, and hoses, plus fresh front brakes.”
Baughman & Turner Automotive
“Wouldn't take my car anywhere else Mark and his crew are the best!”
Listed for drivers in and around Fullerton, CA, these 24 shops work on transmissions. What each one says about rebuilds, warranty terms and the brands it handles comes from its own website; ratings and quotes come from public reviews.
Area overview: Fullerton, CA
All 24 mechanics we list here are in Fullerton itself. We have 39 mechanics in Fullerton on file; this page shows the highest-rated 24. The mechanics on this page are rated from 4.3 to 5.0 across 2,208 reviews; 13 have 50 or more reviews and 20 are rated 4.5 or higher. The topics that come up most in reviews of the mechanics on this page are "price", "honest" and "diagnosis". 15 are open on Saturdays and 1 on Sundays. 3 list staff certifications (ASE) and 7 have a BBB rating of A or A+. 15 have ten or more years of experience, the longest 70 years. 1 offers financing; 1 gives free estimates; 5 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for 11 of the mechanics on this page; 6 publish a contact page; 4 list a public email and 1 takes bookings online. We count these figures across the mechanics on this page; hours and prices change, so confirm the details with the mechanic before you visit.
Do years in business matter for transmission work?
Ten or more years in business is claimed by 15 of the 24 shops here. Rebuild quality is hands-on skill, and a shop that has been in one place a long time is easier to hold to a warranty. It is what their listings state, not a guarantee.
Fisk Automotive
“I went for an oil change, but they checked everything in my car and sent me the results.”
Discount Transmission & Auto Care
“Very knowledgeable and guided me through what I needed and what I didnt.”
Roy's Transmission Service
“Always honest with you do the greatest work on vehicles I've ever seen.”
J&J Auto Service
“Coated dollar amount over the phone, went out the door for the same dollar amount.”
Terry's Automotive
“Our daughter took our SUV in for an oil change and leaky power steering pump and they only charged $60!”
FZ Garage
“He always takes his time to diagnose problems that at the end of the day have saved me perhaps thousands.”
Orange County Fleet Services
“Time is money and I was only down for an afternoon thanks to them.”
Vision Auto
“I usually do not trust mechanics and lawyers much but here, Truly truly truly honest mechanic.”
Orange County Tires
“They are very knowledgeable about tires and honestly advise on when a replacement is necessary.”
Pops & Sons Auto
“Great service , honest and gets the job done ..”
Cedillo's Auto Repair
“Not only resolving the issues with our vehicle, he helped us greatly in assisting us to understand what the specific issue is with the vehicle (and therefore coming up with appropriate solicitation).”
Union Services Center
“They are knowledgeable, fair in pricing, and most important: HONEST!”
Sal's Auto Service
“This is the guy that I go to when I have a problem I can't diagnose or a repair I don't want to do.”
차수리 BK Automotive
“The only place I trust to get my car repairs!”
S&K Auto Repair
“If you are looking for somebody reliable that you can trust your car, you're in a right address”
A to Z Auto Repair & Tires
“I will for sure be coming back here, I recommend this place to anyone looking to get work done on their car!”
Complete Auto
“Carlos the owner is a man to ask for your car need.”
Tecnicar Auto Service
“Excellent 👌 service I recommend it 👍 …”
Why these companies made our list
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