1999 Chevrolet Astro Wheel Backspacing

3.76 in · 3.64 in · 3.50 in

Quick specs

Backspacing
3.76 in · 3.64 in · 3.50 in
Wheel size
6.5x15 · 7x15
Bolt pattern
6×139.7, 5×127
Tire size
215/75R15 · 235/65R15 · 245/60R15

OEM configurations

ConfigurationRimOffsetBackspacingTireBolt patternCenter boreThread
4.3 · 4.3L, L35/LU3, V6, Petrol6.5x15ET133.76 in215/75R155x12778.1 mm1/2" - 20 UNF
4.3 · 4.3L, L35/LU3, V6, Petrol6.5x15ET103.64 in235/65R155x12778.1 mm1/2" - 20 UNF
4.3 · 4.3L, L35/LU3, V6, Petrol6.5x15ET103.64 in245/60R155x12778.1 mm1/2" - 20 UNF
4.3 · 4.3L, L35/LU3, V6, Petrol7x15ET03.50 in245/60R155x12778.1 mm1/2" - 20 UNF

Compare wheel position See wheel offset

Backspacing values above are calculated from OEM wheel width and offset using BS = width/2 + offset_mm/25.4 (same formula as the fitment calculator).

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More specs for the 1999 Chevrolet Astro

Backspacing on these pages is calculated from OEM wheel width and offset (width/2 + offset_mm/25.4). Higher backspacing seats the wheel farther inward; lower backspacing moves it outward.