MY F-350 work truck broke down on the highway. I figured it was the transmission so I had it towed from my house after unloading all my tools & parts, to Detroit Transmission. Of course I dropped by to check out the place prior to making my decision. I wanted to make sure Tim wasn't packing a loaded gun as one post mentioned.I was impressed with the place as I took a tour. Tim seemed like a strait shooter- I was convinced they had the right stuff to fix my truck. It turned out to be a broken axle, instead of the tranny. They kept me updated on the progress... I needed to come by and grab a tool from my truck while it was up on the lift and they were very accommodating. Harold, who was doing the work was very pleasant and helpful, showing me the broken parts etc. The various front office staff were pleasant. My truck was finished in a timely manner. The bill seemed reasonable ( expensive repair? Of course it was expensive! its a transmission/powertrain shop, but I know it was done right). I'd give them my business again... I couldn't have asked for better service. Ron Lehman read more

Dropped my Mercedes off on April 1, 2026. They looked us in the eye and said 2-3 weeks. I finally got it back in July. They charged me for a "100,000-mile warranty." After the money cleared they said they'd mail it. Three weeks of complete silence later I called. Some bitter woman at the front desk swore she'd email it "immediately." 48 hours later -- still nothing. Called again and got the owner, Tim Tapper. He played stupid for a minute, then muttered, "Well, it takes me a long time to fill those out." You could hear him sounding out words like a slow child while he talked. They never filled the warranty out. Not a single word of it. They took the money, lied to my face, and spent an entire month gaslighting me because the owner is too lazy, too dishonest, and too incompetent to complete a one-page document. These people are morally bankrupt, thoroughly unethical, and as worthless as a cup of cold piss. Absolute bottom-of-the-barrel operation. Do not give them a single dollar. Absolute garbage operation. read more

DO NOT GO HERE!!! Very unprofessional, had a horrible experience. Messed up on my vehicle not once but twice. Invested a lot of money to be leaving with a vehicle that is still not fixed and even more damage then before. Go spend your money elsewhere or you will be waiting a month and a half for your car to not even be fixed. The owner and mechanics are very conniving and rude. read more

DISHONEST MANAGEMENT and ZERO ACCOUNTABILITY. In Oct 2024, Detroit Transmission replaced our Ram's flex plate with a Mopar OEM part. By June 2025, the part failed. Tim repeatedly claimed it was out of warranty due to mileage (over 15k miles) and charged us $2,576 for a second replacement. I did the legwork Tim refused to do: I verified with three other shops and two Dodge dealers that the Mopar part actually has a 2-year UNLIMITED mileage warranty. The part was found to be warped with cracked welds. I also found out we should have been charge $798 for the part, because mechanic shops get a 30% discount from the Dodge dealer. After I provided the warranty proof and asked why he changed $1238.51 for a $798 part, Tim admitted to a "computer error" overcharge for the part of $440 and refunded us the $440, but the nightmare continued. Though their Dodge dealer credited Detroit Transmission for the flex plate on Nov 5 and mailed a labor reimbursement check on Dec 26, the shop still did not reimburse us. When we finally confronted them in person in Jan 2026, they refused to give us the full refund for the part. They charged us $798 for the part and only refunded $638.40, pocketing $159.60 (their shop discount for the part). They also refused to refund the $150 of labor reimbursement and $113.32 sales tax. They still owe us $422.92. They forced us to do all the warranty legwork ourselves, with Cathy, the bookkeeper, saying that was our responsibility since it was our truck. They kept money that belongs to us. AVOID this shop; they do not honor warranties and lack basic integrity. For a more detailed review check out their Facebook page. read more

Tim and his staff are amazing. I own a general auto repair in Littleton. Detroit is where I send all of our specialty transmission needs. They are always fair with us when carry in a transmission. If I send my customers up there as a referral they are treated well. Simply an awesome shop with integrity. Tim you are the best, your 90+ years Oh sorry 30+ years of experience really shows. When it does come time for retirement our industry will have lost on of the Greats!!!! read more

Great folks. I dealt with Tim, he was so helpful and he was very professional. He told me exactly was wrong with my car and it would cost more than it was worth. I appreciate not being trusted just some old lady that is incapable of talking with some knowledge of transmissions. If you need transmission work please give Detroit Transmission a shot. read more

I was expecting to need some major work on my RV's transmission. I'm glad I trusted the recommendation of a friend and took it to Detroit Transmission. The repair was incredibly minor (to them) and cost me very little time and money to be back on the road. In these days of "anything for a buck", it was refreshing to deal with pros that not only have skills, but the integrity and honesty to earn my trust for the future. I would not hesitate to take my vehicle to these guys in the future. read more

Great communication. After trying several shops who either didn't answer the phone or couldn't get us in "for 2 weeks," this shop took our car with one phone call. They're busy so I didn't expect it back same day; all we wanted was a diagnostic and repairs, is possible. Tim was honest, his staff was courteous, and the place was safe and secure for my vehicle overnight. Highly recommend. Hope we never need repairs for our car again but if we do, this is the only place we'll call first. Excellent customer service. -so rare to find these days. THANK YOU DETROIT TRANSMISSION. read more

I have done business with Tim since he opened Detroit Transmission, both on personal vehicles and with fleet vehicles. He has always stood behind his work. He and his team do great work read more

DO NOT USE THEM! AVOID AT ALL COST!!!! Zero Stars was not an option but what I would have put if I could. This shop lied to us and destroyed the car. The shop claimed our car was broken into while on their property after failing to return calls and claiming to have done unauthorized work that later we found out was a lie and they had done nothing to our car for nearly 3 weeks. The shop has failed to reimburse us much less even show us the camera footage of the incident. ( We have clear pictures of the camera that is pointing to the area our car was sitting) When we went to try to take our car back(finally) the car was locked with zero damage to the outside and zero property stolen from inside the car. Yet the ignition lock cylinder had been ripped out of the car and hidden under the floor mat. In addition the dash which prior to leaving the car with this shop was in perfect condition is now broken and cracked. This is all after we took the car in to have it looked over to see why the transmission they had put in (not even 4 months before!) was breaking down. After leaving the car with them we first were told they had taken the transmission out and were waiting for us to bring a new one (We had never authorized this!). A week or so later we were informed that they had not in-fact taken the transmission out and that it had been ready to pick for two weeks. This was the same person we spoke to on both accounts. They indicated that we could collect the car the following day. They said it would be unlocked with the key under the mat. We clarified that we had a spare key and that they most defiantly needed to LOCK the car. After arriving the car was in-fact locked sitting on the lot, surrounded by multiple other cars that were similarly undisturbed. Once the door was unlocked it was clear that that something had happened, the dash was cracked and broken and as I said before the ignition lock cylinder along with the key were under the floor mat. We tried to speak with the mechanic who we learned was named Tim and is the owner of the shop who brushed our shock and anger off with a literal eye-roll and told us it was not their problem and the car had been broke into. For anyone not familiar with a car being broken into, the out side of the car was fine and locked (so how did they get into it much less What kind of thief LOCKS a car after they try to steal it???) The key was in the car (if your this determined to steal a car you would have noticed this) additionally after the ignition lock cylinder is out the only thing left to steal the car is to turn the ignition, which is how the tow truck driver started the car to toe it back to ours. It will now cost us hundreds of dollars to fix the damage that occurred while on their property under their care and we are still left with the original problem we took the car in for. Our experience here was horrible and if this can save anyone one else from being treated this way and scammed I'll feel just a little better... read more

My hopes were so high for Detroit Transmission. I did exactly as asked and brought my car in a day before. After multiple messages, I finally got the front desk woman to get Kirk on the phone. Unapologetically, he said he never got any messages and didn't give me any evaluation, timelines, or expectations. Back across town to pick it up and I don't think it was even looked at. Guess they're nice to every 5th guy that comes in or something... on to the next gamble to get my transmission looked at. read more

I cannot say enough positive statements about Detroit Transmission! A friend of mine, who is a mechanic, recommended Detroit Transmission as I believed my transmission went out. I gave Detroit a call asking if I could have my car towed there. The lady, Kathy, I spoke with was so very helpful. Within 24 hours I received a call from Tim, the owner. He explained to me what was going on. Come to find out it wasn't the transmission (Thank God!). Tim made recommendations and informed me of the cost which was externally reasonable! Within a few hours Tim called informing me my car was good to go. The young lady who checked me out was as kind as Kathy and Tim. The entire transaction was so stress free. As you can imagine, I was seriously stressing thinking it was my transmission. Tim and Company took great care of me and my car!!! I highly recommend you give Detroit Transmission a call for your auto repair. Thanks Tim and Company!!! read more

My local mechanic, Doug, took the transmission from my 2000 Ford Ranger pick-up truck to Detroit Transmission Specialists in Arvada, CO to have it re-built. Five months afterwards, fifth gear began to slip into neutral on periodic occasions. I brought this issue to the owner, Tim Tapper, and he immediately scheduled my truck for a 5th gear replacement the following week. The actual work took less than 8 hours to replace the gear & there was NO service charge since their work is guaranteed for 12 months. They are a Better Business Bureau member & I recommend them highly to anyone who needs work done on their transmission. read more

My 2006 Jetta broke down in the mountains while I was heading out of town, so I had to rent a car and have my car towed back to Denver. I recently moved to Denver and was not familiar with any auto repair shops around town, so I had my car towed to the nearest VW dealership. The VW dealership claimed I needed a new transmission and they priced it out at $6,500 (plus they charged me $120 to look at it)!!! I had the car towed to Detroit Transmission for a second opinion and Kirk took excellent care of me and my automobile. Here are a few things that stood out to me: - no charge to inspect/diagnose my vehicle - exceptional customer service - he looked at the vehicle and noticed the dealership had not even checked the transmission fluid - he held onto my car for several days, running occasionally to determine the problem - eventually found no problems and did not charge me a dime - also, the price for a new transmission here was 40% less expensive than the dealership, plus the warranty coverage was 3x longer I've now been driving my car for a month with no additional problems. The mileage on the car is high and the issue could arise again in the future, but at least I know exactly who to trust when that time comes. read more

They were recommended to me when I had clutch issues, and have helped my through every step of getting my lemon of a car fixed. Tim is one of the nicest most helpful guys, and stuck with me when issues with my car persisted. Although I hope not to have to bring my car into a shop any time soon, if I do I would definitely go to them. read more

These two brothers are awesome and know what they are doing. I had my clutch adjusted on my civic which was a minor job yet treated me with the most respect. I highly recommend them it is a huge shop that is owned by two brothers who I assume are from Detroit which I am sure means that they know their automotive stuff better than any one of us natives. They have a lot of city vehicles, cop cars, buses and even armored trucks in here so it appears that they are trusted by a lot already. read more

This shop does great work and stands by their craft. The have worked on my Audi's for years now and honored warranties with no issues. Even out of state. A GREAT, GREAT SHOP!! read more

These guys are as good as it gets. They seem to be able to work on every transmission imaginable--the last time I was in there I saw everything from an RTD bus to a Mazda RX7 getting worked on. I've had two separate jobs done there and totally satisfied with both. They're straight talkers, won't do more than is necessary and do a great job. read more

Had problems with a transmission detroit transmission built and RT Automotive installed. Tranny was not shifting out of first being RT Automotive charged me$ 5600 for a job that was supposed to cost $3400. I brought my truck to Detroit transmission Tim the owner said everything would be covered under warranty Great I said. Four days later I revived a call from Kurt at Detroit. He told me it was a broken sensor that was under warranty he also told me I needed new tranny lines he quoted me$ 572 to replace the lines. I told him to do it however, when I came to pick up my truck the bill was was $746. I asked why the lady at the counter told me Kurt was not there and she did not known. I came in the next day and was told my Tim the owner that if I returned again I WOULD BE SHOT needless to say I called the police i had no witness so I was unable to prosecute him Tim the owner of Detroit transmission. I did not get the quote in writing so nothing I can do but write this add. If you use this shop get everything in a written quote and possibly where a bullet proof vest before pickup read more

They suck when it comes to the appointment I took my truck just get oil change early in the morning and when to pick it up at 2:30 and they never did nothing to it bad service read more

It shows integrity when a company tells you when you don't need something done, even after you've agreed to the bid. I had authorized new wheel bearings due to some noise and the 100k miles on them. Kirk called to advise me they didn't need replacement; the noise was due to a lug nut issue. Very trustworthy people. read more