Guaranteed Automotive & Transmission Service

(765) 530-2527
28 Verified Reviews

8:00am to 5:00pm
8:00am to 6:00pm
8:00am to 5:00pm
8:00am to 6:00pm
8:00am to 5:00pm


3742 State Rd 38 E
Lafayette, IN 47905 USA


  • Clint Johnson, Manager
  • Established 1983
  • 4 Auto Repair Mechanics on Staff
  • 1 ASE Certified Auto Technician
  • 82 Years of Car Repair Experience

Guaranteed Automotive & Transmission Service Reviews


28 Verified Reviews
5 stars
4 stars
3 stars
2 stars
1 star
by - Verified Customer March 24, 2017

Staff is very friendly and the work done on my car was top-notch.

by - Verified Customer March 20, 2017

The staff is helpful and prices are fair. I would refer anyone here.

by - Verified Customer March 18, 2017

I can't say enough nice things about Guaranteed Transmission Service. Their service is the best. We trust them and know we don't need to question them because they are always honest.

by - Verified Customer March 12, 2017

This was my 2nd time at the shop. They're nice and everything was ready when they said it'd be.

by - Verified Customer March 10, 2017

Awesome service!

by - Verified Customer March 09, 2017

Everything runs great since our service. We've used them before.

by - Verified Customer March 07, 2017

Everything was fine and it was ready about when they said it would be. This was my first time at this shop.

by - Verified Customer March 06, 2017

We didn't end up getting the work done, it was just too many repairs needed for that car but we loved the shop. They went above and beyond to even accommodate rides to and from their shop.

by - Verified Customer March 04, 2017

They said there was nothing wrong but there is and I think they overcharged me. I wouldn't go back.

by - Verified Customer March 01, 2017

We went in for a quote and were very pleased with how we were treated. We ended up deciding the vehicle wasn't worth the cost of the repairs, but we did feel the prices were very fair.

by - Verified Customer February 27, 2017

The service was great and the staff was very friendly!!

by - Verified Customer February 26, 2017

We have always been so happy with this shop! We even submitted a letter to them, thanking them for the wonderful service that provide.

by - Verified Customer February 11, 2017

Great service. They brought my truck back to me at my workplace.

by - Verified Customer February 09, 2017

Very pleased, because they corrected a problem that the dealer could not detect.

by - Verified Customer January 29, 2017

It took a while to find the problem but in the end I was satisfied.

by - Verified Customer January 28, 2017

The service has always been good, the people who work there have always been polite and helpful and they have always been honest, often going the extra mile to provide good service.

by - Verified Customer January 19, 2017

Outstanding service & follow-up

by - Verified Customer January 17, 2017

Each and everyone at Guaranteed Service Transmission has always been consistently attentive, courteous and knowledgeable. We usually communicate with Nick Badger concerning any questions or concerns we may have with our 1998 Chevrolet Silverado/1500 truck. Nick has always "steered" us in the right direction whether it's normal maintenance required to keep our truck on the road, any mechanical problems that need to be addressed or just very patient in answering questions we may have. While it's a 120 mile round trip from our home to GTS we wouldn't ever consider anyone else working on our truck. We believe that the service and mechanical expertise at GTS is superior and consistent whether we converse with Nick, Dan or Tracy in the office - or have the opportunity of speaking directly with the actual mechanic that is performing the required maintenance or solving a mechanical issue. Each and everyone at GTS is committed to excellence in customer service!

by - Verified Customer January 15, 2017

Great shop!!

by - Verified Customer January 02, 2017

so so.

by - Verified Customer December 12, 2016

I've had multiple transmissions replaced at Guaranteed and I've always been very pleased with the results.

by - Verified Customer December 11, 2016

When I researched a shop to repair my transmission, I happened upon GTS. From the first time I walked into the shop, Nick Badger greeted me and kept me updated on the whole process, start to finish. He took care of contacting the warranty company, lining me up with a rental car, and explaining every step of the process. Since getting my car back it drives like a dream. I would recommend Nick and his crew to all my friends. They made this whole process bearable.

by - Verified Customer December 08, 2016

They fixed the problem in a timely manner and were polite.

by - Verified Customer December 04, 2016

Great service.

by - Verified Customer November 27, 2016

Extremely fair assessment and fair price.

by - Verified Customer November 18, 2016

Best service and value in Tippecanoe county.

by - Verified Customer October 26, 2016

Informative. Helpful. Genuine. Great services and wonderful people!

by - Verified Customer October 13, 2016

Very good.

RepairPal Scorecard


Guaranteed Transmission Service (GTS) was established back in 1983 and has been proudly serving Lafayette and the surrounding area ever since. This RepairPal Certified shop features a very experienced and well-trained team who are equipped with the state of the art tools and diagnostic equipment necessary for today's modern vehicles. Repairs performed here can range from transmission and driveline diagnoses and repair, to minor and major mechanical repairs, to check engine light and computer diagnosis and repairs, as well as your scheduled maintenance needs. All this work is backed by a 24-month / 24,000-mile warranty for your peace of mind. Our survey of their recent customers revealed a group who describe the team here as “friendly”, “helpful”, “awesome”, “wonderful”, and "outstanding". A local shuttle service, rental cars, early bird drop-off, and a waiting area with wireless Internet are also available for your convenience.



  • AC/Heating
  • Check Engine Light
  • Diagnosis
  • Hybrid/Electric
  • Muffler & Exhaust
  • Oil Change & Lube
  • Scheduled Maintenance
  • Service & Repair
  • Timing Belts
  • Transmission Repair
+ More


  • AAA Member Discount
  • Car Delivery
  • Car Pickup/Dropoff
  • Child Friendly
  • Coffee
  • Early Bird Dropoff
  • Financing
  • Free Multi-Point Safety Inspection
  • Heated Waiting Room
  • Military Discount
  • Rental Car
  • Service Guarantee
  • Shuttle
  • Warranty Accepted
  • Wireless Internet
+ More


  • ASA
  • Bosch Service Network
  • NAPA


We specialize in transmission repair and have been the local experts since 1983. For the convenience of our customers we are also offering General Auto Repair work by an ASE Master Tech. Brakes, Engine work, EVAP, Radiator, Air conditioning, Tune-ups and all diagnostics.


  • Acura
  • Audi
  • BMW
  • Buick
  • Cadillac
  • Chevrolet
  • Chrysler
  • Dodge
  • FIAT
  • Ford
  • GMC
  • Geo
  • Honda
  • Hummer
  • Hyundai
  • Infiniti
  • Isuzu
  • Jaguar
  • Jeep
  • Kia
  • Land Rover
  • Lexus
  • Lincoln
  • Mazda
  • Mercedes-Benz
  • Mercury
  • Mini
  • Mitsubishi
  • Nissan
  • Oldsmobile
  • Plymouth
  • Pontiac
  • Porsche
  • Ram
  • Saab
  • Saturn
  • Scion
  • Smart
  • Subaru
  • Suzuki
  • Toyota
  • Volkswagen
  • Volvo
+ More
Questions Answered by Guaranteed Automotive & Transmission Service
When rpms go.up the car is surging & t...
There are a lot of reasons why an engine can surge to such a high RPM while driving. It could be a transmission concern and/or an engine concern. Please contact us at 765-447-6012 so that we can run some tests and procedures to get to the bottom of this for you!
I'm wanting to replace the EGR valve o...
The EGR valve is usually attached to the intake manifold and/or an exhaust manifold. All makes and models place this part in different places. In your vehicle, it depends on which engine is used, the 2.5L or 3.3L?

Get Directions to Guaranteed Automotive & Transmission Service