GM Service Manual Online
For 1990-2009 cars only

Whenever possible, make judgements and conclusions based on measurement. Measure the wheel alignments so as to prevent any future trouble like unsymmetrical wear of the tires or catching of the steering wheel.

    • If there are any deviations, use a tram tracking gage and measure parts of the body (a).
    • If there is any twisting to the body, measure using a frame centering gage (b).

Specifications

      • Pointer B -- Short pointer height adjustment 15-290 mm (0.59-11.42 in)
      • Pointer B -- Long pointer height adjustment 185-450 mm (7.28-17.72 in)
    • When measuring body dimensions, use a universal tram gage (c).

Frame Reference Point


Object Number: 1257333  Size: LF
(1)Adjust Screw A
(2)Pointer C Holder
(3)Reference Scale
(4)Expanding/Contracting Scale
(5)Pointer B
(6)Adjust Screw C
(7)Adjust Screw B
(8)Pointer C
(9)Adjust to the Diameter of the Wheel Disc
(10)Adjust to the Vehicle
(11)Pointer A
(12)Clip
(13)Set Screw
(14)Move Within A Range of 250-1,570 mm (9.84-61.81 in)
(15)Frame
(16)Pointer 4
(17)Set Ring
(18)Height