Contents Wiring diagrams Section: Frames, Subframes & Crossmembers All sections

Frame & Underbody: Other Oldsmobile Bravada III

Frames, Subframes & Crossmembers 8 illustrations ~222 words

Point to Point Measurements

Point-to-point measurements are for reference only. Use these measurements for diagnosis for validating. Point-to-point measurements do not afford the accuracy that 3-dimensional measuring systems have. Point-to-point measurements are duplicated with tram bar pointers set at equal lengths. All holes, slots, and fasteners are measured to the center.

Scheme 9

Scheme 9: Point to Point Measurements
LocationDescriptionType
AFront bumper mounting hole16.4 diameter sleeve hole
BDie mark arrowArrow point
CGusset hole30.0 diameter hole
DGage hole31.5 x 37.5 diameter slot
EGage hole14.0 diameter hole
FGage hole17.0 diameter hole
GGage hole14.0 diameter hole
HSide member rail RRBottom outer tangent
All dimensions are measured in millimeters from a zero line, center line and a common datum. All dimensions are symmetrical unless otherwise specified.

Dimensions - Frame (Trailblazer, Envoy, Bravada)

Three-Dimensional Measurements

Three-dimensional measurements are provided in the absences of dimension information from your equipment supplier. Universal three-dimensional measuring equipment is required to use these numbers. You may need to adjust the height dimensions to match the datum height of your equipment. Only the width dimensions can be used to measure point-to-point. All holes, slots and fasteners are measured from the center.

Scheme 10

Scheme 10: Three-Dimensional Measurements
LocationDescriptionLengthWidthHeight
1Datum Line000
2Center Line000
3Zero Line000
AFront Bumper Mounting Hole1895 mm416 mm546 mm
BDie Mark Arrow1544 mm416 mm552 mm
CGusset Hole837 mm322 mm294 mm
DGage Hole0 mm540 mm379 mm
EDraw Hole55 mm503 mm297 mm
F17.0 mm Hole1795 mm495 mm449 mm
GDrain Hole2506 mm497 mm569 mm
HSide Member Rail RR3033 mm537 mm569 mm
2WD shown; 4WD dimensions are the same, graphics similar. All dimensions are measured in millimeters, from a zero line, center line, and a common datum. All dimensions are symmetrical, unless otherwise specified.

Dimensions - Frame (Trailblazer EXT, Envoy XL)

Point-to-point measurements are for reference only. Use these measurements for diagnosis for validating. Point-to-point measurements do not afford the accuracy that 3-Dimensional measuring systems have. Point-to-point measurements are duplicated with tram bar pointers set at equal lengths. All holes, slots and fasteners are measured to the center.

Scheme 11

Scheme 11: Point to Point Measurements
LocationPoint to Point
A420 mm
B1544 mm
C1795 mm
D1237 mm
E1290 mm
F2006 mm
G1611 mm

Dimensions - Frame (Trailblazer EXT, Envoy XL)

Scheme 12

Scheme 12: Engine Compartment Horizontal

Scheme 13

Scheme 13: Engine Compartment Point to Point

Scheme 14

Scheme 14: Engine Compartment Diagonal

Scheme 15

Scheme 15: Rear Door Opening Dimensions

Scheme 16

Scheme 16: Body Side Dimensions
FromToDistance
Front Door12506
Front Door131180
Front Door141055
Front Door15636
Front Door231191
Front Door241392
Front Door251080
Front Door34830
Front Door351056
Front Door45510
Rear Door67544
Rear Door68830
Rear Door691102
Rear Door6101199
Rear Door78402
Rear Door79965
Rear Door7101214
Rear Door89668
Rear Door810987
Rear Door910362

Dimensions - Body (Trailblazer, Envoy, Bravada)

Body Side Dimensions

FromToDistance
Front Door12506 mm
Front Door131180 mm
Front Door141055 mm
Front Door15636 mm
Front Door231191 mm
Front Door241392 mm
Front Door251080 mm
Front Door34830 mm
Front Door351056 mm
Front Door45510 mm
Rear Door67724 mm
Rear Door68937 mm
Rear Door691203 mm
Rear Door6101197 mm
Rear Door78402 mm
Rear Door79900 mm
Rear Door7101321 mm
Rear Door89668 mm
Rear Door8101047 mm
Rear Door910718 mm

Dimensions - Body (Trailblazer EXT, Envoy XL)

Frame Sectioning - Front Full Frame

IMPORTANTFront frame service section installation requires replacement of the sway-bar mounting brackets.