8333 103rd Street, Jacksonville, FL 32210, US

(904) 619-4631

Welcome to Clay County Transmission & Auto Care

About Us


Clay County Transmission and Auto Care

8333 103rd Street

Jacksonville, FL 32210

The mission of Clay County Transmission and Auto Care is to provide the best quality transmission, transaxle, clutch and driveline service to our customers while ensuring fairness in price, highest quality workmanship and adequate profits to the business, as well as providing a safe, enjoyable work environment for the employees.



Committed to providing you excellent service, so you always choose us for your repair needs.

For most people, auto maintenance and repair is not fun or convenient. So, we want make the process as easy and enjoyable as possible for you. We genuinely care about your car and your experience, and it shows. Our first-time customers continually become our long term customers time and time again, choosing us for all their transmission and  auto repair needs.

We’re committed to auto repair and to serving you with quality and value. Bring your car in today for an inspection, and see what our commitment to quality is all about! We may not be related, but you’ll feel like we’re family


Dedicated to transmission and auto repair and to serving you with quality & value.

 Our mechanics are highly skilled and have years of experience. Most of all: they love cars and care about yours. Whether it’s our quick, quality, friendly service or the honesty and value we bring to every interaction, our customers love us.

 Get to know our experienced mechanics. They’ve got tools, skills, and a desire to help. Come see why no shop is as quick, qualified, or convenient as we are.

We even have our very own web designer, who handles our online look! 


Meet the Owners

In order to fully comprehend the scope of our success, it is important understand how formally Clay County Transmission now Clay County Transmission and Auto Care began.

Established in 1988 by John J. and Michelle D. Placzkowski, while John was employed at a shop that cared more about the almighty dollar than about the customer or the employee. John and Michelle decided to branch out on their own and began Clay County Transmission in a small one bay shop. One lift, a few other pieces of equipment, some tools and a dream. Oh yeah, and a very sharp pencil. The goal was and still is to provide the customer with service before, during and after the sale. Personal service at a fair price. 

On 1 July 2017 Anthony & Vivian Placzkowski purchased the business. 


My military career:   Sept 1975 to Oct 1996

Joined the Navy right out of high school and

Retired as Ship’s Serviceman Master Chief Petty Officer (E9)

Tours of duty:

USS John F. Kennedy CV67

Naval Ammunition Facility Vieques PR

USS Voge FF-1047  (pronounced Vo-gee)

USS Mississippi CGN40 deployed to the middle east during operations Desert Storm and Desert Shield after Sadaam Hussien invaded Kuwait

Assistant Navy Exchange Officer Guantanamo Bay Cuba during the Cuban and Haitian Exodus

Command Master Chief Navy Exchange Southern Region NAS Jacksonville

Upon retirement joined my brother John Placzkowski (Plaz-cow-ski), United States Air Force Veteran at Clay County Transmission and worked to grow the business into a 3 shops including the newest location in Jacksonville as a NAPA AutoCare Center. 

We were nominated and selected as the Clay County Chamber of Commerce Small Business of the Year for 2016.

As a member of the community we support the local youth athletic association including Middleburg Athletic Association, the Police Athletic League and the local high school athletic programs.  We also work with the Intrepid Fallen Heroes Project.