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

Frame & Underbody: Specifications GMC Envoy II

Frames, Subframes & Crossmembers 1 illustration ~185 words

Fastener Tightening Specifications

ApplicationSpecification
MetricEnglish
Assist Step Bracket to Assist Step Nuts25 N.m18 lb ft
Assist Step Bracket to Body Bolts25 N.m18 lb ft
Body Mount Bolts80 N.m59 lb ft
Engine Shield Mounting Bolts25 N.m18 lb ft
Frame Brace Mounting Bolts50 N.m37 lb ft
Front Steering Gear Crossmember Mounting Bolts50 N.m37 lb ft
Fuel Tank Shield to Frame Mounting Bolts25 N.m18 lb ft
Lower Control Arm Bracket Rear Mounting Bolts240 N.m177 lb ft
Lower Transmission Support to Frame Bolts50 N.m37 lb ft
Radiator Support Shield Mounting Bolts17 N.m13 lb ft
Rear Steering Gear Crossmember Mounting Bolts50 N.m37 lb ft
Tow Hook to Front Impact Bar Bolt50 N.m37 lb ft
Transfer Case Shield Mounting Bolts16 N.m12 lb ft
Transmission Mount to Transmission Support Nuts46 N.m35 lb ft
Upper Transmission Support to Frame Bolts80 N.m59 lb ft

Fastener Tightening Specifications

Scheme 1

Scheme 1: Removal Procedure

The re-designed frame assembly for the new S/T Utility is a mild, steel hydroformed frame assembly. A front frame service section consisting of the left and right frame ends, body, and radiator support mounting brackets and front connecting cross tube is available. If damage permits, locate and cut off the front 420 mm (161/2 in) portion of the frame using the die-mark indicators as a guide. The front and rear body mounts, radiator support mounts, steering gear and transmission cross-member can be ordered and replaced separately.

  1. Remove all of the related panels and components including the front bumper assembly.
  2. Locate the 2 die-marks on each frame. The die marks are located 420 mm (161/2 in) rearward from each front frame rail end on the top and bottom side of each rail.
  3. Apply masking tape over the die-marks and down each frame rail side as shown, for the cut location.
  4. Cut each frame at the rear edge of the tape line using a reciprocating saw or equivalent, as shown.
  5. Remove the damaged frame section.