Frame and Body Mounting
The frame is made up of 2 steel boxed side rails and crossmember, which are welded to the 2 side rails. The transmission crossmember is bolted to the side rails. The side welded rails and crossmember are not replaced separately.
The service kits available for the frame are the following
- RH front horn replacement kit
- LH front horn replacement kit
- Front bumper bracket replacement kit
- 1B crossmember replacement kit
- Transmission crossmember replacement kit
- Exhaust hanger bracket kit
Refer to the instructions included in the kits for installation instructions. For any frame repair, refer to BODY REPAIRS .
Frame Mounted Heat Shields
All frame-mounted heat shields, except the spare tire heat shield and the upper control arm heat shield, are tightened to 20 Nm (177 lb-in). The spare tire heat shield is tightened to 25 Nm (18 lb-ft). The upper control arm heat shield is tightened to 15 Nm (133 lb-in).
Scheme 55
| Item | Part Number | Description |
|---|---|---|
| 1 | Body-to-frame mounts | |
| 2 | Front crossmember No. 1 | |
| 3 | 1B crossmember | |
| 4 | RH frame rail | |
| 5 | Transmission crossmember | |
| 6 | Crossmember No. 3 | |
| 7 | Crossmember No. 4 | |
| 8 | Crossmember No. 5 | |
| 9 | Crossmember No. 6 | |
| 10 | LH frame rail | |
| 11 | Tow hook bold (4 required) | |
| 12 | Tow hook (2 required) | |
| 13 | Tow hook nut plate (2 required) |
ITEM DESCRIPTION
Scheme 56
| Item | Part Number | Description |
|---|---|---|
| 1 | W505263 | Spare tire winch bolt (3 required) |
| 2 | Spare tire winch rivet (2 required) | |
| 3 | W705589 | Spare tire winch pushpin retainer (2 required) |
| 4 | Spare tire winch cable guide | |
| 5 | 1A131 | Spare tire winch assembly |
| 6 | W712588 | Spare tire heat shield bolt (3 required) |
| 7 | 1A484 | Spare tire heat shield |
ITEM DESCRIPTION
Scheme 57
| Item | Part Number | Description |
|---|---|---|
| 1 | W503942 | Front skid plate bolt (4 required) |
| 2 | 5D032 | Front skid plate |
| 3 | Transfer case skid plate bolt (4 required) | |
| 4 | 7E063 | Transfer case skid plate |
ITEM DESCRIPTION
Note. When removing upper body mounts, enough adjacent body mount support bolts or nuts must be removed to prevent damage occurring to the vehicle.
Note. Do not reuse body support mounting fasteners. New fasteners must be installed for each fastener that has been removed or loosened.
Note. No lubricants of any kind are to be used during body mount installation.
Scheme 58
| Item | Part Number | Description |
|---|---|---|
| 1 | 78001B39 | Front End Sheet Metal (FESM) mount bolt |
| 2 | 7800193 | Lower front end sheet metal mount |
| 3 | 7800192 | Upper front end sheet metal body mount |
ITEM DESCRIPTION
Scheme 59
| Item | Part Number | Description |
|---|---|---|
| 1 | 78001B39 | Body mount bolt |
| 2 | 7800192 | Body support mount |
| 3 | W506433 | Body mount bolt (2 required) |
ITEM DESCRIPTION
Body Support - No. 2 and No. 3
Note. No. 2 body mount shown, No. 3 body mount similar.
Scheme 60
| Item | Part Number | Description |
|---|---|---|
| 1 | 78001B39 | Body support mount bolt |
| 2 | 7800193 | Lower body support mount |
| 3 | 7800192 | Upper body support mount |
ITEM DESCRIPTION
Scheme 61
| Item | Part Number | Description |
|---|---|---|
| 1 | W709518 | Body mount nut and washer |
| 2 | W506433 | Body mount bolt (2 required) |
| 3 | 7800192 | Body mount |
ITEM DESCRIPTION
Transmission Support Crossmember - Exploded View
Note. Transmission not shown for clarity.
Scheme 62
| Item | Part Number | Description |
|---|---|---|
| 1 | W520114 | Transmission support crossmember nut (4 required) |
| 2 | W705049 | Transmission support crossmember bolt (4 required) |
| 3 | N621945 | Transmission mount nut (2 required) |
| 4 | 5059 | Transmission support crossmember |
ITEM DESCRIPTION
Scheme 63
Scheme 64
Scheme 65
- With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to «JACKING & LIFTING»(ref-364035) .
- If equipped, remove the skid plate fasteners and skid plate.
- Remove the LH and RH exhaust heat shield-to-crossmember fasteners.
- Remove the 2 transmission mount nuts. To install, tighten to 103 Nm (76 lb-ft).
- Support the transmission.
- NOTE: Mark the transmission crossmember next to the edge of the frame bracket to make sure the crossmember is installed in the same position it was removed from. NOTE: The crossmember nuts are installed on the crossmember bolts facing the front of the vehicle. Remove the 4 transmission crossmember bolts (2 each side) and the transmission crossmember. To install, tighten to 90 Nm (66 lb-ft).
- To install, reverse the removal procedure.
Scheme 66
| Item | Part Number | Description |
|---|---|---|
| 1 | W708795 | Trailer hitch side mounting bolt (4 required) |
| 2 | W711408 | Trailer hitch lower mounting bolt (4 required) |
| 3 | 17775 | Trailer hitch |
| 4 | N611038 | Trailer hitch lighting plug bolt (4 required) |
| 5 | 14489 | Trailer hitch lighting socket |
| 6 | Trailer hitch electrical connector | |
| 7 | Trailer hitch wiring harness |
ITEM DESCRIPTION