What Our Customers Are Saying

What Our Customers Are Saying

At Harmon Performance Transmission & Diesel Repair, your satisfaction is the true measure of our success. We take immense pride in the feedback we receive from our community, as it reflects our commitment to transparency and elite technical skill. Whether we’ve helped you get back on the road for your daily commute or tuned your rig for a podium finish, we value the opportunity to serve as your local family-owned transmission specialists.

Share Your Experience

Have you recently visited our shop? We would love to hear from you! Your feedback not only helps us improve but also assists other local drivers in finding a transmission specialist they can rely on.

Real Feedback from Real Drivers

Mark Jackson
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I bought a 2018 GMC Denali and noticed it had a shudder. I researched the issue and found out it was a common problem with the transmission. I went to Harmon and inquired about solutions. They gave me options And explained the fix. I chose a transmission rebuild. They kept me informed through the process and finished it in good time. I picked up my truck last week and am totally impressed with how the truck now shifts and runs.
Gerald Kruse
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Seems like a great place. Very clean and organized shop. Wish my transmission would have been repairable
michael
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I recently had a service done on my transmission (fluid and filter change) and I couldn't be happier with the entire experience! From the moment I walked in the staff was very professional, honest and upfront about everything that would be done including the price! Jason took the time to explain everything that they found and recommended I should fix or keep an eye on outside of service they were doing and never once pushed me to have them fix everything else right then and there. The quality of their work is top notch and my vehicle shifts smoother then ever. They finished the job on time as expected and kept me updated throughout the whole process. Its rare to find a place with this kind of customer service now days and one you can trust. So all of this is why they earned a 5 star from me and highly recommend them for any vehicle/transmission concerns you may have! Thank you guys for a great experience!
Leslie Dickinson
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jason has looked at 2 of my vehicles now to see if the transmissions were bad. He's very good and honest. I highly recommend them. I'd give 10 stars if I could. Thank you for the great service.
Jason Adams
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The guys there are very up front about what you need and don't need. Plus they are very good at their job. This place really knows their stuff
Nick Lauber
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
These guys are awesome, highly recommend
Dillon Proulx
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
This shop is awesome. My wife and I brought our jeep in for a transmission replacement. They had honored our word and were extremely patient while we were sourcing funds for the unexpected repair. I would recommend this shop to anyone. Thanks again!
Stuart Buehler
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I can't say enough good things about this shop. I have been looking for a great trustworthy local mechanic and found them now. I had taken my vehicle to another auto shop for all fluid changes and services. I was told my vehicle needed a new transmission out of the blue. I decided to take it for a second opinion and brought it to Harmons. They did all of the proper testing and determined I infact do not need a transmission. They serviced everything, found a few areas that needed attention and got me taken care of. Extremely happy I decided to bring it in. I will take all of my vehicles here now.

Ready for 5-Star Service?

Experience the specialized care that has made us a trusted name in New Richmond.
Call or Text us today at 715-410-7156 to schedule your service.