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2003 Corvette: Service Bulletin: Info - Recommended Wheel Nut/Bolt Torque Specifications

Subject: Info - Recommended Wheel Nut/Bolt Torque Specifications
Model and Year:
Table 1: 2003 Passenger Cars Table 2: 2003 Light Duty Trucks
Source: Chevrolet Service Bulletin
Bulletin Number: 02-03-10-008 - (12/17/2002)

This bulletin is being issued to list the recommended wheel nut/bolt torque specifications for passenger cars and light duty trucks for the 2003 model year.

2003 Passenger Cars

Vehicle

Fasteners

Bolt Circle Diameter (mm)

Lugwrench Hex Size

Service Torque

Number

Size

N·m

lb ft

J

5

M12 x 1.5

100

19 mm

140

100

B, C, D, G, H, K, N, U Van, W

5

M12 x 1.5

115

19 mm

140

100

Corvette

5

M12 x 1.5

120.65

19 mm

140

100

Pontiac Vibe

5

M12 x 1.5

100

21 mm

103

76

 

2003 Light Duty Trucks

Vehicle and Application

Fasteners

Bolt Circle Diameter (mm)

Lugwrench Hex Size

Service Torque

Number

Size

N·m

lb ft

S/T (All)

5

M12 x 1.5

120.65

19 mm

140

100

GMT360/370 (All)

6

M12 x 1.5

127

19 mm

140

100

M/L (All)

6

M14 x 1.5

139.7

22 mm

190

140

G/H10 (All)

6

M14 x 1.5

139.7

22 mm

190

140

G20, 30 (All)

8

M14 x 1.5

165.1

22 mm

190

140

C/K 15 (All Except 1500HD)

6

M14 x 1.5

139.7

22 mm

190

140

C/K 1500HD, 25, 35 & 36 (Including Dual Wheels)

8

M14 x 1.5

165.1

22 mm

190

140

HUMMER H1

8

9/16-18

165.1

7/8 in

190

140

HUMMER H2

8

M14 x 1.5

165.1

22 mm

190

140

Tracker (All)

5

M12 x 1.25

139.7

19 mm

95

69

* -- Dual wheel trucks - torque specifications apply to front and rear wheels.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.

© Copyright General Motors Corporation. All Rights Reserved

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