The following 8 service centers are located in Ohio ...

 MAP IT!
JR Alignment Service
2211 Washington Blvd.
Belpre, OH    45714
PHONE: +1 740-516-0306
jrma@suddenlink.net
Map to JR Alignment Service
 
T & T Alignment
119 W Grant Street
Clyde, OH    43410
PHONE: +1 (419) 271-0322
Map to T & T Alignment
 
Hannah Truck Repair
23220 CR 621
Coshocton,, OH    43812
PHONE: +1 740-622-8346
hannahtruck@yahoo.com
Map to Hannah Truck Repair
 
Flynn's Tire
7032 Truckworld Blvd
Hubbard, OH    44425
PHONE: +1 330-534-4920
store234@flynnstire.com
Map to Flynn's Tire
 
Valley Tire - Truxtex Repair
7920 Center Point 70 Blvd.
Huber Heights, OH    45424
PHONE: +1 937-424-0644
store31@valleytireco.com
Map to Valley Tire - Truxtex Repair
 
Valley Tire Co. - Truxtex Truck Repair
777 West Cherry St.
Sunbury, OH    43074
PHONE: +1 740-936-5262
Map to Valley Tire Co. - Truxtex Truck Repair
 
3/C Towing and Repair
494 JONESBORO RD
Washington Court House, OH    43160
PHONE: +1 740-572-1471
chipbumpus@bumpustrucking.com
Map to 3/C Towing and Repair
 
P 3 Custom Service ltd
14234 Franchester Rd
WEST SALEM, OH    44287
PHONE: +1 (216) 704-2074
paulcritzer@zoominternet.net
Map to P 3 Custom Service ltd
 

We also have at least one Protrak service center in the following other states/provinces:

Alberta
Alabama
Arizona
California
Colorado
Florida
Georgia
Iowa
Idaho
Illinois
Indiana
Kansas
Kentucky
Louisiana
Massachusetts
Michigan
Minnesota
Missouri
Mississippi
Montana
North Carolina
North Dakota
Nebraska
New Jersey
New Mexico
Nevada
New York
Oklahoma
Ontario
Oregon
Pennsylvania
Quebec
South Dakota
Saskatchewan
Tennessee
Texas
Utah
Virginia
Washington
Wisconsin
West Virginia
Wyoming