Fitment knowledge · c10-2g
1967–1972 · 2 documented findings, each backed by real builds and sources.
On a stock-height 67-72 C10, 4.5" front / 5.5" rear backspacing on 8" and 10" wheels is the documented clean fit.
Heads up: The proven spec: near-zero offset, ~4.5" backspacing on an 8"-wide front wheel, ~5.5" on a 10"-wide rear
4 documented builds · confidence 70%
A 4/6-dropped 67-72 C10 runs big-diameter wheels clean when backspacing stays near 4.5" front and 5.5" rear.
Heads up: On a 4/6 drop with a stock-length rear axle: 19-20" wheels clear with ~4.5-4.75" backspacing up front (255-width) and ~5-5.5" rear (295-width); drop spindles shift the front spec
4 documented builds · confidence 65%
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