1999 GMC Sonoma Wheel Offset

Quick specs

Wheel size: 6x15 · 7x15 · 7.5x16
Offset: ET25 · ET63 · ET51 · ET12
Backspacing: 3.98 in · 5.48 in · 5.51 in · 4.22 in
Bolt pattern: 5×120.7, 5×120.65
Center bore: 70.3 mm
Thread: M14×1.5, M12×1.5
Tire size: 205/75R15 · 235/70R15 · 245/50R16

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Configuration

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OEM configurations

Configuration	Rim	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
2.2i · I4, Petrol	6x15	ET25	3.98 in	205/75R15	5x120.65	70.3 mm	M12 x 1.5
2.2i 4WD · I4, Petrol	6x15	ET63	5.48 in	205/75R15	5x120.65	70.3 mm	M12 x 1.5
2.2i 4WD · I4, Petrol	7x15	ET51	5.51 in	235/70R15	5x120.65	70.3 mm	M12 x 1.5
4.3i · I4, Petrol	6x15	ET25	3.98 in	205/75R15	5x120.65	70.3 mm	M12 x 1.5
4.3i · I4, Petrol	7.5x16	ET12	4.22 in	245/50R16	5x120.65	70.3 mm	M12 x 1.5
4.3i 4WD · V6, Petrol	6x15	ET63	5.48 in	205/75R15	5x120.65	70.3 mm	M12 x 1.5
4.3i 4WD · V6, Petrol	7x15	ET51	5.51 in	235/70R15	5x120.65	70.3 mm	M12 x 1.5

Wheels and hardware

Lug hardware

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More specs for the 1999 GMC Sonoma

Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.