3742 State Road 38 East
Lafayette, IN 47905
(765) 447-6012
WiFi Available
in Waiting Area
Serving Lafayette
Since 1983
ASE Certified Technicians
Perform All Repairs

About Guaranteed Transmission Service - Lafayette

Auto Repair Lafayette, Indiana

Dave, our Transmission Builder

Guaranteed Transmission Service began as an idea in a one-car garage where John and Terri Johnson lived over 25 years ago in Lafayette, Indiana. John and Terri built their idea 3 years later at 3742 State Road 38 East. At that time, Guaranteed Transmission Service had 5 service bays, all specifically for transmission and driveline maintenance and repair. The founding principles of Guaranteed Transmission Service were performing quality work at honest prices, never selling our customers anything they don’t need, and giving them a complete service experience.

Over time, the word spread about our company. John, Terri, and the family lived next to the business for many years and developed many close relationships with customers. In 1986, Guaranteed Transmission Service broke ground on a new facility. Two years later the continuing support and growth led to the expansion of a new 14 bay service center. Thanks to our customers Guaranteed Transmission Service became the largest independent transmission service facility in the state.

Today Guaranteed Transmission Service remains one of the largest independent repair centers in the state, still specializing in what we do best, transmissions!

Clint Johnson, one of John and Terri’s sons, has taken over the leading role at Guaranteed Transmission Service. Growing up Clint was always around the shop, working after school and in the summer, doing anything from sweeping floors to tearing down and eventually rebuilding transmissions. As time passed, Clint’s interest and love for the business grew. He is dedicated to upholding the founding principles Guaranteed Transmission Service was built on.

Guaranteed Transmission Service has been in business more than 25 years now, and still the majority of our customer base is from referrals. The continued success is due to the relationships we have with our customers. Our reputation of honesty, quality work, and customer service has grown because of the relationships we built and the relationships we continue to build.

Guaranteed Transmission Service and the Johnson family would like to thank our customers for your support and loyalty over the years. Putting you first is our main focus, and we are very grateful to be serving you today and look forward to serving you in the years to come.

Meet the Guaranteed Transmission Staff

Terri Johnson

Terri Johnson co-founder and President of Guaranteed Transmission Service. Terri graduated from Rossville High School in 1975 and moved to Lafayette, IN that same year. She remains active in the business today as the primary bookkeeper and financial manager. When not at work, she enjoys spending time with her children, spoiling her grandchildren, and taking trips.

Clinton Johnson

Clint is Terri’s son and Co-Owner. He has 21 years of experience in the auto and transmission industry. He graduated from Central Catholic High School in 1995 and attended Ivy Tech State College where he received an Associate’s Degree in General Automotive. Clint is an ASE Certified Technician. He is one of our Transmission Rebuilders and our Diagnostician. He enjoys spending time with his 4 beautiful children.

Dave Kingery

Dave is a technician and our primary transmission rebuilder. He graduated from Lincoln Technical Institute and is certified in transmissions and transaxles of both manual transmissions and drivetrain. He has over 33 years of experience in the automotive industry. He continues with training in his specialty almost 40 hours per year. He is ASE certified in Auto Electrical and Electronic Systems. He is the proud father of 3, grandfather of 2 and enjoys fishing, snowmobiling, and cycling.

Tracy Schimmel

Tracy is from Lafayette, IN and graduated from McCutcheon High School in 1992. He has 24 years of experience and has been with Guaranteed Transmission and Auto Service for 17 years as a R&R and underbody technician. Tracy enjoys spending time with his kids, going on long Harley rides and has recently taken up boating.

Jeremy Cross

Jeremy is a Master Technician, has 8 ASE certifications, is IMACA certified and has 13 years of experience in the automotive industry. He went to Fountain Central High School and then to IVY Tech. He averages 50 hours per year of continual education with focus on Auto Diagnostics. When he is not working on cars, you can find him spending time with his 2 beautiful children, shooting, writing poetry and short stories.

Steve Hughes

Steve is our General Technician. He is our Go to Guy! He has been around cars all his life. He has over 10 years of experience in the automotive industry. He has been with Guaranteed Transmission and Auto Service since 2008. He graduated High school at the Arizona Boys Academy. He enjoys hunting, fishing, camping, and spending time with his family and his children.

Tracy Scolley

Tracy is our Office Manager. She has been around the automotive industry for over 15 years. She has been with Guaranteed Transmission and Auto Service since 2015. She graduated from Benton Central High School in 1992 and went on to attend St. Mary of the Woods College in Terre Haute. Tracy has been happily married for 23 years and resides in Warren County. After hours you can find her riding her 4-wheeler, camping, and spending as much time as she can with her friends and family.

Dan Leuck

Dan is our Service Manager. He began his career with Guaranteed Transmission and Auto Service in March 2012. Dan was raised in the Lafayette area and has a genuine passion for cars. He has 1 brother living in Indianapolis and his only sister lives in Lafayette still. Dan graduated Lafayette Jefferson High School in 2006 and then attended Purdue. Dan and his fiancé are getting married in October 2016. Dan especially enjoys time with his fiancé, family, and many friends. His hobbies include woodworking and global time attack racing.

Nick Badger

Nick is also one of our Service Advisors. He has been in the automotive industry for over 4 years. He has been with Guaranteed Transmission and Auto Service since 2015. He is currently working on his C1 ASE Certification. Nick graduated from Valparaiso High School in 2007 and attended Purdue University. Nick loves simply just enjoying time with his fiancé, spending time with his family, and racing his 2001 Firebird when the budget allows.

Guaranteed Transmission Service is always looking for qualified, dedicated, and motivated technicians and personnel. If you are interested in a position at Guaranteed Transmission Service please compile your resume and send it via our Contact Form. Make sure to attention Dustin. You may also call 447-6012 and ask for Dustin. All applicants must have a resume.

Shop Hours

Monday 8am - 5pm
Tuesday 8am - 6pm
Wednesday 8am - 5pm
Thursday 8am - 6pm
Friday 8am - 5pm


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