WheelOffset

2003 Chevrolet TrailBlazer EXT Wheel Offset

ET50

Quick specs

OEM offset
ET50
Wheel size
7x17
Backspacing
5.47 in
Bolt pattern
6×127
Center bore
78.1 mm, 77.8 mm
Tire size
245/65R17

OEM configurations

ConfigurationRimOffsetBackspacingTireBolt patternCenter boreThread
4.2 · I6, Petrol7x17ET505.47 in245/65R176x12777.8 mmM12 x 1.5
5.3 · V8, Petrol7x17ET505.47 in245/65R176x12777.8 mmM12 x 1.5

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See how a different width or offset sits versus an OEM configuration for this year.

OEM: 17×7 ET50 · 245/65R17 · Front · 4.2 · I6, Petrol

  • Outer: +0 mm
  • Inner clearance: 0 mm unchanged

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Wheels and hardware for this vehicle

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Lug hardware

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  • White Knight Chrome M12x1.50 Bulge Acorn Lug Nut, 20 Count

    M12 x 1.5

    Matches M12 x 1.5 thread — confirm wheel seat style

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  • White Knight 3807BK-20AM Black Chrome M12x1.50 Spline Lug Nut, 20 items

    M12 x 1.5

    Matches M12 x 1.5 thread — confirm wheel seat style

    Check price on Amazon

Wheel locks

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  • MCGARD Chrome Cone Seat M12 x 1.5 Wheel Locks

    M12 x 1.5 · lock

    Matches M12 x 1.5 — confirm seat style for your wheel

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  • Gorilla Automotive Wheel Locks With Washer (M12x1.50)

    M12 x 1.5 · lock

    Matches M12 x 1.5 — confirm seat style for your wheel

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More specs for the 2003 Chevrolet TrailBlazer EXT

OEM offsets are catalog configurations, not an aftermarket “safe ET range.” Matching offset alone does not confirm clearance. Documented custom builds are observed setups only.