GM Service Manual Online
For 1990-2009 cars only

Object Number: 886183  Size: MF

This can be measured with the use of a universal measuring system capable of dimensioning the length, width and height of a datum plane simultaneously. Three dimensional distances are used for both underbody and upperbody measuring.

X = Fore and aft measurements along the center line of the vehicle. An "O" plane is located forward of the master gage hole at the front of the vehicle XXXX mm as shown. All measurements are made from this plane toward the rear of the vehicle.

Y = Cross car dimensions positive values are measured from the center of the vehicle to the right side of the vehicle. Negative values are measured from the center of the vehicle to the left side. When values are not listed separately to change "hand" on the vehicle, you only need to change the "Y" dimensions to the opposite value "-" or "+" from what is listed.

Z = Vertical measurement from the datum plane that is XXX mm below the rocker panel lower flange edge ("0" plane.)

All dimensions are symmetrical unless otherwise noted.

For proper repair of the spaceframe it is necessary to restore the vehicle to these XYZ dimensions to which we build the vehicle to in the fixtures at the manufacturing plant. Relational (linear) dimensions are for reference only. They may be used for diagnosing or checking only. Relational dimensions do not afford the accuracy that XYZ dimensions and measuring systems have.

The gage holes shown, highlighted in heavy lines, are the actual fixturing locations that are used to build the vehicle in the plant. When the vehicle is damaged to the point where less than three of these locations are in place, it would be wise to very accurately assess damage to determine if the vehicle is actually economically repairable.

Master Gage Hole


Object Number: 886687  Size: MF

Bottom View


Object Number: 886631  Size: MF

Position #

X

Y

Z

1

1727.0

- 464.0

335.0

2

1727.0

464.0

335.0

3

1717.0

562.0

801.0

4

1954.0

437.0

290.0

5

2830.0

- 433.0

137.0

6

2830.0

433.0

137.0

7

3435.0

462.0

141.0

8

3620.0

630.0

246.0

9

3826.0

623.0

223.0

10

4218.0

493.0

362.0

11

4448.0

435.0

362.0

12

5007.0

501.0

355.0

13

5007.0

- 501.0

355.0

14

4448.0

- 435.0

362.0

15

4218.0

- 493.0

362.0

16

3826.0

- 623.0

223.0

17

3620.0

- 630.0

246.0

18

3435.0

- 462.0

141.0

19

2830.0

- 433.0

137.0

20

1143.0

523.0

260.0

21

1954.0

- 437.0

290.0

22

1727.0

- 464.0

335.0

23

1717.0

- 562.0

801.0

24

966.0

492.0

382.0

Front End View (00-02)


Object Number: 886950  Size: MF

Position #

X

Y

Z

1

1819.0

- 680.0

796.0

2

1717.0

- 562.0

801.0

3

1622.0

- 678.0

770.0

4

1456.0

- 674.0

742.0

5

1285.0

- 670.0

703.0

6

977.0

- 320.0

657.0

7

1060.0

- 651.0

494.0

8

851.0

- 436.0

381.0

9

851.0

- 436.0

469.0

10

833.0

- 352.0

466.0

11

800.0

- 85.0

465.0

12

977.0

- 320.0

657.0

13

800.0

85.0

465.0

14

851.0

436.0

381.0

15

833.0

352.0

466.0

16

851.0

436.0

469.0

17

1080.0

632.0

425.0

18

1060.0

651.0

494.0

19

977.0

320.0

657.0

20

1117.0

626.0

667.0

21

1285.0

670.0

703.0

22

1456.0

673.0

741.0

23

1622.0

678.0

770.0

25

1819.0

680.0

796.0

26

1498.0

480.0

507.0

Front End View - 2003


Object Number: 886950  Size: MF

Position #

X

Y

Z

1

1819.0

- 680.0

796.0

2

1717.0

- 562.0

801.0

3

1622.0

- 678.0

770.0

4

1456.0

- 674.0

742.0

5

1285.0

- 670.0

703.0

6

1208.2

- 655.6

696

7

1060.0

- 651.0

494.0

8

851.0

- 436.0

381.0

9

851.0

- 436.0

469.0

10

833.0

- 352.0

466.0

11

800.0

- 85.0

465.0

12

977.0

- 320.0

657.0

13

800.0

85.0

465.0

14

851.0

436.0

381.0

15

833.0

352.0

466.0

16

851.0

436.0

469.0

17

1080.0

632.0

425.0

18

1060.0

651.0

494.0

19

977.0

320.0

657.0

20

1208.2

655.6

696

21

1285.0

670.0

703.0

22

1456.0

673.0

741.0

23

1622.0

678.0

770.0

25

1819.0

680.0

796.0

26

866.2

0

657

Driver Side View - Sedan


Object Number: 886931  Size: MF

Position #

X

Y

Z

1

3252.0

717.0

362.0

2

2850.0

373.0

1283.0

3

2850.0

- 373.0

1283.0

4

3069.0

527.0

1282.0

6

5025.0

761.0

547.0

7

4750.0

805.0

533.0

8

4198.0

771.0

749.0

9

4183.0

772.0

710.0

10

3411.0

589.0

1275.0

11

3281.0

757.0

634.0

12

3277.0

760.0

592.0

13

3318.0

788.0

337.0

14

3252.0

794.0

362.0

15

3200.0

796.0

281.0

16

2313.0

755.0

795.0

17

2309.0

759.0

732.0

18

2300.0

793.0

275.0

Driver Side View - Wagon


Object Number: 886934  Size: MF

Position #

X

Y

Z

1

3252.0

717.0

362.0

2

2850.0

373.0

1283.0

3

2850.0

- 373.0

1283.0

4

3069.0

527.0

1282.0

5

4926.0

354.0

1287.0

6

5056.0

757.0

521.0

7

4781.0

800.0

507.0

8

4198.0

771.0

749.0

9

4183.0

772.0

710.0

10

3411.0

589.0

1275.0

11

3281.0

757.0

634.0

12

3277.0

760.0

592.0

13

3318.0

788.0

337.0

14

3252.0

794.0

362.0

15

3200.0

796.0

281.0

16

2313.0

755.0

795.0

17

2309.0

759.0

732.0

18

2300.0

793.0

275.0

Rear End View - Sedan


Object Number: 886698  Size: MF

Position #

X

Y

Z

1

4176.0

- 383.0

1290.0

2

4176.0

383.0

1290.0

3

4177.0

663.0

1044.0

4

4177.0

- 663.0

1044.0

5

4697.0

205.0

951.0

6

5356.0

138.0

601.0

7

5285.0

31.0

498.0

8

5285.0

- 31.0

498.0

9

5255.0

- 137.0

601.0

10

5260.0

460.0

445.0

11

5260.0

570.0

445.0

12

5260.0

515.0

328.0

13 (2002 Only)

5149.0

678.0

847.0

13 (2003 Only)

5165

616

854

14 (2002 Only)

5155.0

709.0

769.0

14 (2003 Only)

5148

677.5

768

15

5075.0

722.0

833.0

16

5025.0

761.0

547.0

17

4750.0

805.0

533.0

18

3321.0

766.0

564.0

19

3321.0

765.0

596.0

Rear End View - Wagon


Object Number: 886702  Size: MF

Position #

X

Y

Z

1

4926.0

- 354.0

1287.0

2

4926.0

354.0

1287.0

5

5260.0

570.0

445.0

6

5260..0

515.0

328.0

11

5260.0

570.0

445.0

12

5260.0

- 570.0

445.0

13

5260.0

- 515.0

328.0

14

5163.0

725.0

816.0

15

5172.0

736.0

675.0

16

5056.0

757.0

521.0

17

4781.0

800.0

507.0

18

4990.0

540.0

1214.0

Rear End View (Tether) - Sedan


Object Number: 886634  Size: MF

The measurement between the left and right rear tethers is 411 mm (16 3/16 in).