Hummer H1 (2006+). Manual - part 279

9-94 Axles, Suspension and Frame

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Installation

1.

Install the engine mount bracket on the frame rail with four washers, bolts, washers and the locknuts. Tighten the locknuts to
90 lb-ft. (122 N•m) (Figure  9-141).

2.

Remove the wood block and the jack stand from under the engine oil pan (Figure  9-142).

3.

Secure the engine mount bracket to the insulator with two washers and the locknuts. Tighten the locknuts to 90 lb-ft. (122
N•m) (Figure  9-141).

4.

Secure the brake line and the oil line clamps to the engine mount bracket with the two bolts.

Figure 9-142:   Supporting Engine

Right Engine Mount Bracket Replacement

Removal

1.

Remove the right engine mount and the insulator (Refer to section 2).

2.

Remove the two locknuts, washers, bolts and the washers securing the support bracket to the engine mount bracket (Figure
 9-143).

3.

Remove the bolt securing the vent tube clamp to the engine mount bracket.

4.

Remove the three locknuts, washers, bolts, washers, support bracket and the engine mount bracket from the frame rail.

Figure 9-143:   Right Engine Mount Bracket Replacement

ENGINE

WOOD BLOCK

JACK STAND

OIL PAN

VENT TUBE

CLAMP

FRAME RAIL

SUPPORT

ENGINE MOUNT

BRACKET

BRACKET

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 Axles, Suspension and Frame  9-95

Installation

1.

Install the support bracket and the engine mount bracket on the frame rail with the three washers, bolts, washers and the lock-
nuts (Figure  9-143).

2.

Install the support bracket on the engine mount bracket with the two washers, bolts, washers and the locknuts. Tighten the
locknuts to 90 lb-ft. (122 N•m).

3.

Install the vent tube clamp on the engine mount bracket with the bolt.

4.

Install the right engine mount and the insulator (Refer to section 2).

Right Front Body Mount Bracket Replacement

Removal

1.

Remove the right front body mount.

2.

Remove the three locknuts, washers, bolts, washers and the right front body mount bracket from the frame rail (Figure  9-144).

Installation

1.

Install the right front body mount bracket on the frame rail with the three washers, bolts, washers and the locknuts. Tighten the
locknuts to 90 lb-ft. (122 N•m) (Figure  9-144).

2.

Install the right front body mount (Refer to section 10).

Figure 9-144:   Right Front Body Mount Bracket Replacement

Transmission Mount Crossmember Replacement

Removal

CAUTION: To prevent equipment damage during removal and installation of the transmission mount crossmember, the transmis-
sion must be supported.

1.

Remove the intermediate driveline protection shield (Refer to section 9).

2.

Remove the guide cable retaining nut from the transmission crossmember support bracket bolt.

3.

Remove the transmission crossmember support bracket bolts, nuts and washers from the crossmember.

4.

Remove the transmission crossmember support bracket bolts, locknuts and washers from the frame rail and remove the
support brackets (Figure  9-145).

FRAME

RAIL

LOWER

CUSHION

UPPER

CUSHION

SLEEVE

SPACER

BODY

9-96 Axles, Suspension and Frame

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5.

Remove the two crossmember to transmission mount locknuts and remove the crossmember.

Installation

1.

Install the crossmember and the two crossmember to transmission mount locknuts. Tighten the locknuts to 28 lb-ft. (38 N•m).

2.

Install the transmission crossmember support bracket on the two bolts and the frame rail with the two washers and the
locknuts. Tighten the locknuts to 90 lb-ft. (122 N•m) (Figure  9-145).

3.

Install the transmission mount to crossmember bolts, locknuts and washers. Tighten the locknuts to 90 lb-ft. (122 N•m).

4.

Install the guide cable and the retaining locknut to the transmission crossmember support bracket bolt. Tighten the locknut to
90 lb-ft. (122 N•m).

5.

Install the intermediate driveline protection shield.

Figure 9-145:   Transmission Mount Crossmember Replacement

Transmission Crossmember Support Bracket Replacement

Removal

CAUTION: To prevent equipment damage during removal and installation of the transmission mount crossmember, the transmis-
sion must be supported. 

1.

Remove the intermediate driveline protection shield (Refer to section 9).

2.

Remove the transfer case skid.

3.

Remove the guide cable retaining nut from the transmission crossmember support bracket bolt.

4.

Remove the transmission crossmember support bracket bolts, nuts and washers from the crossmember.

TRANSMISSION MOUNT

CROSSMEMBER

TRANSMISSION

SUPPORT

BRACKET

TRANSFER CASE

SKID

GUIDE CABLE

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 Axles, Suspension and Frame  9-97

5.

Remove the transmission crossmember support bracket bolts, locknuts and washers from the frame rail and remove the
support brackets (Figure  9-146).

Installation

1.

Install the transmission crossmember support bracket on the two bolts and the frame rail with the two washers and the lock-
nuts. Tighten the locknuts to 90 lb-ft. (122 N•m) (Figure  9-146).

2.

Install the transmission mount to crossmember bolts, locknuts and washers. Tighten the locknuts to 90 lb-ft. (122 N•m).

3.

Install the guide cable and the retaining locknut to the transmission crossmember support bracket bolt. Tighten the locknut to
90 lb-ft. (122 N•m).

4.

Install the transfer case skid.

5.

Install the intermediate driveline protection shield.

Figure 9-146:    Transmission Crossmember Support Bracket Replacement

Right Intermediate Body Mount Bracket Replacement

Removal

1.

Remove the right intermediate body mount (Refer to section 10).

2.

Remove the three bolts, washers and the body mount bracket from the frame rail (Figure  9-147).

FRAME RAIL

TRANSMISSION

CROSSMEMBER

SUPPORT BRACKET