We were selling/gifting an older vehicle to a good friend and wanted to make sure everything was solid. Oily's Automative in Fullerton recommended that I reach out to Ron at Leon's and I'm glad I did. Ron took care of us and provided a no-hassle diagnosis for us. I hope I never run into any crazy transmission issues, but if I do, I know where to go! read more

Had my car towed here to have the transmission looked at. They were very honest, friendly and communicative. I ended up selling my car instead of replacing the transmission but would have moved forward with them if it wasn't a better decision for me to sell. The pricing seemed very fair. read more

Awesome got a two-year warranty on my transmission and labor you don't find that anywhere I really appreciate it great work guys guys know what they're doing read more

Katherine and Ron helped me so much! My car was having issues and they were able to figure out exactly what was going on. Not only is the transmission consultation free, but they also told me additional issues with my engine, so I could take my car to my own mechanic. Definitely take your car here! read more

I contacted Leon's Transmission Services to check out my 06 F-150 because I was having shuttering issues, I thought it was transmission related. Catherine helped me schedule the drop off, and Ron contacted me a short while later (same day) and let me know the issue was engine related (misfire) and that my transmission was fine. They didn't charge me anything for diagnosing the problem. I am extremely grateful to Catherine and Ron. They were very nice, friendly people. I will definitely be coming back if/when I have any transmission issues. Thank you guys! read more

I had a terrible experience at another shop but when I called Ron at Leons GardenGrove my problems immediately were put to rest. Ron and the guys were/are fantastic. For transmission work I would go nowhere else but To Leons GardenGrove and ask for Ron. Thanks again Ron. read more

I had a great experience with Leon's transmissions. I dropped my car off fully expecting to have my transmission rebuilt. They found a minor problem and updated my throttle cable bracket. I was fully prepared to spend $3500 for a rebuild. I got out for about 800 bucks. And they finished my car in time to get it to the memory care center event, I needed to show up at. This is my second experience with Leon's and both have been top-notch. read more

Leon's Transmission Services - Made it to the show on time, thanks to the quick repairs on my car. - Auto Repair Near Me - Garden Grove, California

I had the BEST experience at Leon's! Ron was so helpful and kind! Got my car diagnosed and good news wasnt a major issue so he made my day! Great shop, great people! Ill refer everyone there!! read more

I went to Leon's after my dealer quoted me $7k for a new transmission on my 2009 Honda Fit. Leon's was able to rebuild it for about half the cost, and my car is running great now. read more

Leons transmission in garden grove calif on 9/17/25 Ron the manager tried to screw me .told me my 1995 ford van that had 96,000 miles needed a complete transmission rebuilt. said fluid smelled. i only had a slight hard shift from 1st to 2nd. He lied, i went to 2 other trans mission shops , costa mesa Transmission the owner very honest said my transmission is good and fluid does not smell. it was a signal issue code. Get a 2nd option call costa mesa transmission read more

They took a total of 6 weeks to work on our car. The first 3 weeks they had it they said it would be ready everyday and wasn't. There was then something different wrong with the car when it was brought home. Back to the shop it went for another 2.5 weeks which was then under new ownership then saying there was another problem that occurred while it was there. Unless you have weeks on end to drive a rental that you pay for or can live without a car for close to 6 weeks I'd say this place may not be for you! Unless you have all the time in the world and don't need the car for weeks on end and enjoy being strung along I'd find another establishment. read more

The manager is a liar. (Jim) He told me one thing when I dropped off my truck and didn't do what he said he'd do. He promised me to have an estimate ready for me the next day and he didn't. In stead he told me to go and pick up my truck. DON'T GO HERE!!!!!!! UNPROFESSIONAL PEOPLE!!!!!!!!!!!! read more

2005 Dodge magnum needed a complete rebuild. Car was in the shop for 9 days and Was told 10 maximum. Wish it was sooner but Rick kept his word. Got a call that I also needed to replace a rear main seal. Glad they let me know and didn't just continue the rebuild. Also got a faulty part and ordered another one took another day but that stuff happens with electrical parts. I appreciate the transparency and honestly I felt without being pushed or rushed. Out the door a little over 4k. 2 year warranty or 24k miles. Transmission feels better than when I got the car from the previous owner. Will update accordingly. I opted to pay more with this shop because of the reputation they had. I had multiple quotes from other shops with good reviews that were less money but felt honesty when speaking to Rick. He let me know they will not cut corners like the other shops and replace all parts new. When talking to other shops I felt rushed and like they were going to only fix the minimum and charge me full price. Also good customer service, I would recommend anyone trying to get a proper rebuild and not get taken advantage of from another shop. You get what you pay for! Only thing I am not happy with is my interior is a little oily from mechanics carelessness. My interior has clearly been taken care of and I expect to get it in the same condition I left it in. This happens everywhere and I can't stress enough how nice of a touch it is when plastic is used to cover the seat, steering wheel, and the floor mats. Overall, I am happy with Leon's Transmission and appreciate the help. read more

Leon's Transmission Services - Auto Repair Near Me - Garden Grove, California

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Driving to my sister's on Thanksgiving afternoon, my truck lost power sporadically, dash lights flashing, speedometer flailing around. The next morning I got it to a Costa Mesa garage my nephew recommended. Good guy there, but he was busy. He got to it on Monday, called me in the afternoon , apologized, saying it involved something they couldn't do there, but it was safe to drive. Called Leon's the next day (Tuesday) , talked to Rick, who was up front, told me he was pretty busy. Today (Thursday) Rick called to tell me it wasn't the originally diagnosed problem, just dirty battery terminals not getting voltage to a component. Went in, got my wallet out, and was told there was no charge. Aside from a tire plug, where the manager told me to just tip the guy who did the work, I don't believe I've ever heard 'No charge' from a garage. read more

I own a 2005 Chevy Astro Van, it has 340,000 + miles on it. Yes it has had a total of 3x transmission rebuilds and on its 2nd engine right now. Leon's Transmission completed the last transmission rebuild and did it fast: 24 months later the transmission fluid starting leaking and they honored their warranty, no questions and told me to bring it in to inspect it. They repaired the leaking transmission line as they said it had came lose of over the 2 years. I would 100% recommend them and will go here for my next rebuild if this Astro lasts that long. read more

Leon's Transmission Services - Astro van - Auto Repair Near Me - Garden Grove, California

I made an appointment to have a transmission service, arrived and was greeted with a friendly hello from the gentleman at the front. Followed by every other I do visual that worked there coming through with friendly "hello's" and "good morning's". Clean, respectful and were done well under time of what I had expected. Thank you Leon's Transmission and all employees. Highly recommend! You were all amazing! read more

If you care about your vehicle and expect quality work, don't go here. Do it yourself or go elsewhere. They did sloppy work and damaged the aluminum cases on my transfer case, and didn't replace all the seals like I asked them to. In December 2013, I asked Leon's to replace the chain, rebuild, and reseal the NV 241J transfer case from my 2006 Rubicon. I removed the transfer case myself to make it easier. This was the first time the transfer case had been touched since the Jeep was new. They took a few days longer than originally estimated, and I thought they charged a pretty steep price, but I was hoping for thoroughness and quality work. By December 2018 and only 93k miles later, the transfer case was leaking like a sieve from the shift sector shaft seal. I decided to rebuild it myself. Much to my dismay, I found significant gouges on the aluminum seal surfaces for the input and output seals (see pictures). The input seal in particular needs to be removed with a screw, but it looks like they just jammed a seal pick between the case and seal, permanently notching the case where it needs to have a press-fit seal. Furthermore, based on the rock hard shift sector seal, it seemed like it was the factory original seal and they failed to replace it, hence why it was leaking so badly. I found "Adam 12-30-13" written on the side of the case. Maybe it was Adam or one of his colleagues who doesn't know how to remove seals, and skips replacing seals that are smaller and harder to find. I wonder if they even fully disassembled the transfer case. I guess you can't trust anybody unless you're actually looking over their shoulder. read more

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well said Rick.. As I learned CVT transmission change fluid recommendation between 30k-50k. .. Since your shop rebuilt the transmission the fluid was the original since then. The transmission started to have the same repeat jerky issue as before in the range of 24-25k miles. I concluded the work your shop did is NOT worth spending money to rebuild. I made a mistake... His response below " ....he admitting told us that a cooler line was leaking transmission fluid and drove it around for weeks with low fluid. Any driving with low fluid will cause damage." is completely false. I did not say that read more

I, like most people, havent had great experiences when dealing with car repairs. whether it be shops overcharging for basic repairs, claiming optional repairs as necessary, cutting corners on necessary ones, poorly communicating what they intend to do and how long it will take, or just having a general attitude of "im the smart mechanic, you're the dumb customer", all are a huge headache. And given that having your primary means of transportation not functioning coupled with the often exorbitant costs of repairs in any situation is stress enough, having to navigate all of this other stuff is really the last thing I and Im sure most anyone else wants to deal with. And this is exactly why I am so glad I found Leon's. Thanks to Rick, Sarah, and the rest of the team I had what I can only imagine is the most painless replacing of a transmission one could possibly experience. I honestly must say I even enjoyed it! my details: My wife's Jetta has 150K miles on it and was having tell tale signs of being in need of a new transmission (clunky shifts, frequently going into "safety mode" ie staying in 2nd gear) I took it to the only repair shop I've come to trust over the years (Irvine Auto Care). They however don't do transmissions and recommended Leons to me. I was nervous to go to a new shop given my previous poor experiences, but if IAC trusts them I was willing to give them a shot. And I can say every interaction from first to last was exceptional. From the moment I walked in, to anytime I called, Sarah was always kind, positive and helpful. Her cheerful attitude truly is a gift! And Rick was equally as fantastic. He without fuss tolerated all my questions over many phone calls and many days despite what im certain is a very busy schedule. He was also very honest and forthright about what I should expect as far as lead time and what the costs might be. He even helped me weigh the pro's and con's of repairing the car vs buying a new one and what additional repairs I might expect over the coming years. Ultimately we concluded that repairing the transmission makes the most sense. The cost for the repair was of course more than I was excited to pay, but it was about 25% less than what I was seeing other's online report, which was relieving. And despite having a niche german transmission and a shop overflowing with jobs, it hardly took more than a week from start to finish. The car now runs like new and if for any reason the transmission has issues it comes with a 2 year warranty. It is now no surprise to me why Leon's is one of the most trusted names, if not the most trusted flat out, in transmission shops in the OC/LA area, operating for more than 60 years and used by the LA fire department for their trucks. Pleasant, professional, honest, and trustworthy crew who do fantastic work for a great price. What more could you ask for? I will be recommending this great team at Leon's up and down to friends and family and will be absolutely taking any future cars here. Honestly wish they did more than transmissions as I'd love to give them more of my business! Thanks again Rick, Sarah, and the rest of the team for making this experience the best it could be. read more

I took my 1995 Ford Explorer there for a transmission rebuild 20 years ago and it was a good experience. My transmission service required light came on in my current vehicle so I will be taking it in this morning. Will update again when it's done. read more

My Chevrolet Silverado 4X4 developed a pin hole leak in the rear Transfer case cover, my local Chevrolet dealer said the part needed was no longer available and I would have to buy a whole new transfer case $ 4300 Ouch, I took it to Neels auto repair in placentia said he did not specialze in this type of repair, he said go to Leons in Garden Grove see Rick, Rick was very knowledgeable and new his stuff, he found a new transfer case cover with the needed new pump parts that damaged the cover , the work done was excellent and Leons saved me Thousands of Dollars and the work was done right. if I know anyone with transmission or 4X4 issues they are the only ones I would recommend ....5 Stars .................. read more

I would recommend Leon's to anyone with a transmission problem. My dealer told me they could not fix my transmissions. I called Leon's and they picked up my car and confirmed that nothing could be done. Pick up and the evaluation were free-of-charge. They were no games and no charges. read more

Rick Justus and his staff truly stepped up and helped my dad with his transmission repair. My Dad is 77 years old and values honest and trust worthy service. Here is his account of his experience at Leons Transmission  with  Rick Justus and his staff: Dear Rick, February 12th  you repaired my transmission on my 2010 Chevy Traverse.   I want to thank you and your staff for the excellent mechanical service you performed on my car.   When I first called your office your office staff was very professional and polite and explained what I needed to do to have my car serviced.      Rick you explained all the information I needed to know what your services were and approximate cost based on what needed to be replaced.   You gave me a date the car would be completed and called me when the car was available to be picked up.   I recommend any one to your professional services I do not have a Yelp account so asked one of my sons to send this thank you to you. Thank you Dale Carlson read more

I was referred here by my mechanic and to ask for Rick. He was very helpful and they called me the moment AAA dropped my vehicle off. There is no cost for the diagnosis of no forward gears on my Hyundai Elantra. He called the next business day with the findings. The price of rebuilding the transmission was fair and less than the first shop I had it at. The repair was done on time and comes with a two year 24k mile warranty. Thanks for a job well done. read more

100 % honest and reliable and just straight up no BS , Alec thank you for your great service today A+ and Rick thanks for running such a great shop I can trust and believe in you guys ROCK And deserve to be number 1 automotive shop in Orange County of the year . You went way and beyond your customer service duties and helped me tremendously more than u know So I highly recommend this place and my hats off to you and your business Thank u Jules read more

Who is mgr Jim?I am looking foreword to working with the new mgr,and having George changing my transmission fluid and service.I had good dealing with John Armstrong in the past. read more

Taken the car to two mechanics before bringing it to Leon's. Both said something was wrong with the transmission. It was making a terrible squeak. Somebody ( the first mechanic ) put the pcv valve in backwards. A Christmas miracle for sure. Leon's took care of it and didn't charge me a penny! read more

Needed a transmission service badly and they took care of it. Needed more work but I had to hold off for now. They are pretty straight forward in giving me options. read more

Had my son's 2008 Ford F-150 transmission rebuilt. They communicate well, great attitude, professional service and a do right approach. Of course only time will tell and with a 24 mo warranty it is a no brainer. They helped us when we almost went with a 6mo used transmission service from another place. Yes we paid a little more, but I truly believe it was worth every penny and my son is happy. Sorry no pics read more

My boyfriend and I had gone to Leon's transmission to get his transmission fluid replaced. We called before hand where we were told it was free to look at our vehicle and they'd fill up the transmission fluid if it was low for free. In the paper I received it says how the "transmission fluid is full but brown", as the manager then proceeded to mention it wouldn't be worth to change and the only way they'll touch the vehicle is by charging us $3,000+ for a new transmission. We were across the street waiting the whole time watching, and noticed they never lifted our vehicle up for proper inspection. (The truck doesn't have a dip stick, so it would need to be lifted to check properly.) I decided to go to 'One Stop Lighting Wheels & Tires' where they showed me my vehicle had no transmission fluid, and after they changed my transmission fluid my truck ran perfectly fine. No need for a new transmission. This place just saw a younger couple with an older vehicle and tried taking advantage! I HIGHLY don't recommend this scam they consider a business. read more

Leon's Transmission Services - Auto Repair Near Me - Garden Grove, California

Cant say enough good words about Leons. Were they able to fix my issue? no - because it ended up being a fix that the shop does not work on - did they tow my truck to and from my house / their shop / the shop that will address my issue? indeed they did - whenever my f250 trans needs an overhaul, leons will be the only shop i work with. sara and rick - thanks again! read more

Great place excellent service. Rick is very help. Car runs amazing 10/10 will recommend

Les recomiendo a este lugar de transmisión Leon's es 100% garantizado hacen un muy buen trabajo gracias por el trabajo y el equipo que hacen read more

Leon's Transmission Services - Auto Repair Near Me - Garden Grove, California

I have a 2012 Ford Raptor that had front differential issues . It would not completely "lock" in to 4WD . Lots of loud noises when driving thru sand and mud . I use my 4WD frequently and need it to work properly . I waited 3 weeks since the repair was finished to write this review to make sure that it is accurate . I've put 1,100 miles on my truck since picking it up , run it thru sand and mud and it work perfectly . Rick maintained great communication throughout the entire job keeping me informed of progress . The most impressive part of my experience was that the least expensive parts in my differential were the ones that needed to be replaced . A dishonest shop could have jacked my bill thru the roof . Hopefully I never have any transmission repair needs in the future but if I do I'll go see Rick at Leon's ! 5 stars aren't enough ! read more

My transmission broke down my experience here was the best from beginning to end. They took care of everything for me they were very professional and honest. They offer a great warranty. I would definitely recommend them to everyone! read more

I took my classic car to get the transmission rebuilt, they Charged me about 3,000$ (priced roughly were other shops were at) , within the two year warranty period I had to take my car back for misc issues 3 separate times, two of the times I had to pay for a tow truck because the car was not drivable. The last time I took it , the car was left super dirty by the technicians, there was grease stains all over my carpet and doors, as well as my white sheep skin covers. read more

Leon's transmission has an honest and hardworking staff. Brought our car in on the recommendation of our mechanic and got the answers we needed after they performed a thorough mechanical inspection on our car. We would highly recommend this company. Sarah is the office is kind and knowledgeable and Rick was able to give us the answers we needed in an easy to understand way. Would recommended this to anyone. read more

I took in my 2010 Ford Focus because it had some kind of transmission problem. I had the transmission replaced by Leon's and it was 2k miles over warranty. I was stressed. I called and spoke to Rick dropped off my car and within days the problem was solved. Not only did they fix the problem I ONLY paid labor fees. I cannot imagine what another place would have tried to charge me ! They were more than fair and went beyond their job duties. The receptionist was amazing!!!!! Very nice, professional and knowledgeable. It was nice to see a female be so knowledgeable about cars. I will most definitely be referring friends and family to Leon's transmission in garden grove. My car runs like new. read more

Leon's did rebuilt my 2018 Explorer transmission. I am happy with the work and they stayed on their timeline. The biggest thing that the service rep Rick did was work with my lame extended warranty company. My extended warranty company found every way to make working with them hard, Rick (Leon's) stayed with it and worked out the pricing so everything worked out satisfactorily in the end. Thanks read more

Had my transmission serviced for a reasonable price and they had it back on the road in a timely manner. Would definitely recommend Leon's. They did me right. Thanks Sam for the great job! read more