GM Service Manual Online
For 1990-2009 cars only

Dimensions - Body C100/Long Body

Table 1: Front Compartment Dimensions
Table 2: Body Dimensions (Long Body)
Table 3: Underbody Dimensions

Three Dimensional Distance -- X, Y, Z

This universal measuring system is capable of simultaneously dimensioning the length, width, and height of a datum plane. 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. 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 the side of the vehicle, you need only to change the Y dimensions to the opposite value, + or -, from what is listed.

Z = Vertical measurement from the datum plane below the rocker panel lower flange edge (O plane).

All dimensions are symmetrical, unless otherwise noted.

In order to properly repair the spaceframe, restore the vehicle to the XYZ dimensions, as originally built. Relational (linear) dimensions are for reference only. Use relational dimensions for diagnosis or inspection only. Relational dimensions are not as accurate as XYZ dimensions and measuring systems.

The gage holes shown are the actual fixture locations that are used to build the vehicle.

Front Compartment


Object Number: 1761127  Size: MF

Front Compartment Dimensions

Location

Description

Length = x

Width = y

Height = z

Point to Point

1

Hole

1187

540

904

x

2

Hole

1299

713

9080

x

3

Strut Attachment Hole

1698

648

934

x

4

Hood Hinge Hole

1919

760

987

x

5

Hood Hinge Hole

2003

773

996

x

6

Air Inlet Grille Attachment Hole

1776

600

977

x

7

Hole

1698

648

934

x

8

Air Inlet Grille Attachment Hole

1776

600

977

x

9

Hood Hinge Hole

1919

760

987

x

10

Hood Hinge Hole

2003

773

996

x

11

Hole

1299

713

908

x

12

Hole

1187

540

904

x

13

Hood Striker Attachment Hole

1071

0

903

x

14

Impact Bar Attachment Hole

1122

540

533

x

15

Impact Bar Attachment Hole

1122

423

531

x

16

Impact Bar Attachment Hole

1122

434

320

x

17

Impact Bar Attachment Hole

1122

554

324

x

18

Impact Bar Attachment Hole

1122

423

531

x

19

Impact Bar Attachment Hole

1122

540

533

x

20

Impact Bar Attachment Hole

1122

554

324

x

21

Impact Bar Attachment Hole

1122

534

320

x

14 to 19

x

x

x

x

1080

15 to 18

x

x

x

x

846

2 to 11

x

x

x

x

1426

4 to 11

x

x

x

x

1600

2 to 9

x

x

x

x

1600

16 to 21

x

x

x

x

868

All dimensions are measured from a zero line, a center line, and a common datum. All dimensions are symmetrical unless otherwise specified.

Body Side


Object Number: 1761137  Size: MF

Body Dimensions (Long Body)

Location

Length

A-G

840 mm

A-I

1520 mm

B-F

1049 mm

B-E

1145 mm

B-C

392 mm

C-E

1059 mm

C-F

1108 mm

D-H

1956 mm

E-F

407 mm

F-H

1323 mm

Underbody


Object Number: 1761100  Size: MF

Underbody Dimensions

Location

Description

Length = x

Width = y

Height = z

Point to Point

A

Hole

1162

480

341

x

B

Hole

1261

474

287

x

C

Hole

2081

382

230

x

D

Hole

2192

600

193

x

F

Hole

3538

466

206

x

G

Hole

4955

475

404

x

H

Hole

4955

475

404

x

I

Hole

3538

466

206

x

J

Hole

2275

415

197

x

K

Hole

2192

600

193

x

L

Hole

2081

382

230

x

M

Hole

1261

474

287

x

N

Hole

1162

480

341

x

A to G

x

x

x

x

3794 mm

A to E

x

x

x

x

1124 mm

A to J

x

x

x

x

1435 mm

B to L

x

x

x

x

1187 mm

C to N

x

x

x

x

1266 mm

D to F

x

x

x

x

1353 mm

D to I

x

x

x

x

1717 mm

E to I

x

x

x

x

1540 mm

E to N

x

x

x

x

1126 mm

F to G

x

x

x

x

1431 mm

F to J

x

x

x

x

1540 mm

F to K

x

x

x

x

1717 mm

F to H

x

x

x

x

1712 mm

G to I

x

x

x

x

1712 mm

H to I

x

x

x

x

1431 mm

H to N

x

x

x

x

3794 mm

I to K

x

x

x

x

1353 mm

I to N

x

x

x

x

1124 mm

Dimensions - Body C105/Short Body

Table 1: Front Compartment Dimensions
Table 2: Body Dimensions (Short Body)
Table 3: Underbody Dimensions

Three Dimensional Distance -- X, Y, Z

This universal measuring system is capable of simultaneously dimensioning the length, width, and height of a datum plane. 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. 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 the side of the vehicle, you need only to change the Y dimensions to the opposite value, + or -, from what is listed.

Z = Vertical measurement from the datum plane below the rocker panel lower flange edge (O plane).

All dimensions are symmetrical, unless otherwise noted.

In order to properly repair the spaceframe, restore the vehicle to the XYZ dimensions, as originally built. Relational (linear) dimensions are for reference only. Use relational dimensions for diagnosis or inspection only. Relational dimensions are not as accurate as XYZ dimensions and measuring systems.

The gage holes shown are the actual fixture locations that are used to build the vehicle.

Front Compartment


Object Number: 1761127  Size: MF

Front Compartment Dimensions

Location

Description

Length = x

Width = y

Height = z

Point to Point

1

Hole

1170

488

904

x

2

Hole

1299

713

912

x

3

Strut Attachment Hole

1698

648

934

x

4

Hood Hinge Hole

1919

760

987

x

5

Hood Hinge Hole

2003

773

996

x

6

Air Inlet Grille Attachment Hole

1776

600

977

x

7

Hole

1698

648

934

x

8

Air Inlet Grille Attachment Hole

1776

600

977

x

9

Hood Hinge Hole

1919

760

987

x

10

Hood Hinge Hole

2003

773

996

x

11

Hole

1299

713

912

x

12

Hole

1170

488

904

x

13

Hood Striker Attachment Hole

1071

0

903

x

14

Impact Bar Attachment Hole

1122

540

533

x

15

Impact Bar Attachment Hole

1122

423

531

x

16

Impact Bar Attachment Hole

1122

434

320

x

17

Impact Bar Attachment Hole

1122

554

324

x

18

Impact Bar Attachment Hole

1122

423

531

x

19

Impact Bar Attachment Hole

1122

540

533

x

20

Impact Bar Attachment Hole

1122

554

324

x

21

Impact Bar Attachment Hole

1122

534

320

x

14 to 19

x

x

x

x

1080

15 to 18

x

x

x

x

846

2 to 11

x

x

x

x

1426

4 to 11

x

x

x

x

1600

2 to 9

x

x

x

x

1600

16 to 21

x

x

x

x

868

All dimensions are measured from a zero line, a center line, and a common datum. All dimensions are symmetrical unless otherwise specified.

Body Side


Object Number: 1761137  Size: MF

Body Dimensions (Short Body)

Location

Length

A-G

840 mm

A-I

1520 mm

B-F

1049 mm

B-E

1145 mm

B-C

392 mm

C-E

1059 mm

C-F

1108 mm

D-H

1992 mm

E-F

407 mm

F-H

1331 mm

Underbody


Object Number: 1761100  Size: MF

Underbody Dimensions

Location

Description

Length = x

Width = y

Height = z

Point to Point

A

Hole

1162

480

341

x

B

Hole

1261

474

287

x

C

Hole

2081

382

230

x

D

Hole

2192

600

193

x

F

Hole

3538

466

206

x

G

Hole

4950

475

404

x

H

Hole

4950

475

404

x

I

Hole

3538

466

206

x

J

Hole

2275

415

197

x

K

Hole

2192

600

193

x

L

Hole

2081

382

230

x

M

Hole

1261

474

287

x

N

Hole

1162

480

341

x

A to G

x

x

x

x

3789 mm

A to E

x

x

x

x

1124 mm

A to J

x

x

x

x

1435 mm

B to j

x

x

x

x

1187 mm

C to N

x

x

x

x

1266 mm

D to F

x

x

x

x

1353 mm

D to I

x

x

x

x

1717 mm

E to I

x

x

x

x

1540 mm

E to N

x

x

x

x

1126 mm

F to G

x

x

x

x

1426 mm

F to J

x

x

x

x

1540 mm

F to K

x

x

x

x

1717 mm

F to H

x

x

x

x

1708 mm

G to I

x

x

x

x

1708 mm

H to I

x

x

x

x

1426 mm

H to N

x

x

x

x

3789 mm

I to K

x

x

x

x

1353 mm

J to N

x

x

x

x

1124 mm