C3 1968-1982 Corvette Wheel & Tire Reference Guide
When purchasing new tires or wheels for your 1968-1982 Corvette, always refer to the measurements of the wheels and tires that came on your Corvette from the assembly plant. You can be certain that the information on this chart is accurate and correct for C3 Corvettes. When choosing custom or updated wheels, view the clearly marked fi tment years and sizes to ensure the best ride and continued safety while cruising!
| Year | Model | Wheel Location | Wheel Size | Offset | Backspacing | Tire Size |
| 1968 | Corvette-Rally | Front/Rear | 15" x 7" | ( - ) 7mm | 3.22" | F70 x 15 |
| 1969 | Corvette-Rally | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | F70 x 15 |
| 1970 | Corvette-Rally | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | F70 x 15 |
| 1971 | Corvette-Rally | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | F70 x 15 |
| 1972 | Corvette-Rally | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | F70 x 15 |
| 1973 | Corvette-Rally | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | GR70 x 15B |
| 1974 | Corvette-Rally | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | GR70 x 15B |
| 1975 | Corvette-Rally | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | GR70 x 15B |
| 1976 | Corvette-Rally & Optional Aluminum | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | GR70 x 15B |
| 1977 | Corvette-Rally & Optional Aluminum | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | GR70 x 15B |
| 1978 | Corvette-Rally & Optional Aluminum | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | P225/70R-15, P255/60R-15 |
| 1979 | Corvette-Rally & Optional Aluminum | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | P225/70R-15, P255/60R-15 |
| 1980 | Corvette-Rally & Optional Aluminum | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | P225/70R-15, P255/60R-15 |
| 1981 | Corvette-Rally & Optional Aluminum | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | P225/70R-15, P255/60R-15 |
| 1982 | Corvette-Rally & Optional Aluminum | Front/Rear | 15" x 8" | ( - ) 13mm | 3.5" | P225/70R-15, P255/60R-15 |
