1970 could have a 5 on 4.5 or a 5 on 4.75 bolt pattern measure from one cbolt enter to the next bolt center if distance 2 5/8 then 5 on 4.5 bolt pattern if distance 2 3/4 then 5 on 4.75 bolt pattern if distnace 3 then 5 on 5 bolt pattern if distance 3 1/4 then 5 on 5.5 bolt pattern hope this helps
4.75
4.75
5 on 4, and 3/4.
5 x 4 3/4"
It is 4.5".
5x5
6 bolt 5.5 6X5.5 6 bolt 5.5 6X5.5
5 lug - 4.75'' spacing
5x4
The 1978 Chevrolet Nova features a 5-lug bolt pattern with a diameter of 4.75 inches (or 5x4.75). This means there are five lugs spaced evenly around a circle with a diameter of 4.75 inches. This bolt pattern is common among various Chevrolet models from that era, making it easier to find compatible wheels.
5X4.75 or 5X4 and 3/4
The small bolt pattern is 5 lugs on 4". This was used until 1972. In 1973 they changed to the large bolt pattern which is 5 lugs on 4.5".