Hummer H1 (2006+). Manual - part 310

10-102 Body

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Figure 10-124: H-Rail Removal

NOTE: While removing the H-rail, note where sealer is placed so during installation, the sealer can be duplicated

Installation

Install the L brackets to support the structure so the bend is to the bottom and the brackets are adjusted upward as far as they
could go. Leave the brackets finger tight to ease installation of other components and adjustment later in the procedure.

Using the bolt and the washer, install the threaded L-brackets onto the H-rail so the bend is upwards. Tighten the bolt.

Put foam tape on the top mating surface of the C-pillar cover and place the rear extrusion against the bottom surface of the H-
rail. Install the three screws (Figure 10-125).

Put foam tape on the top edge of the B-pillar cover. Place the cover against the bottom edge of the H-rail and tighten the four
upper screws (Figure 10-125).

Apply sealer to the bottom of the B- and the C-pillar covers.

Install the H-rail onto the support structure. Place the L-brackets installed on the H-rail under the L-brackets on the support
structure. Tighten the screws when installed.

Install the lower fasteners in the B-pillar cover. Do not tighten (Figure 10-125).

Install the lower fasteners in the C-pillar cover. Do not tighten (Figure 10-125).

Adjust the H-rail and the extrusions so the seams are flush, tighten the fasteners.

10. Install the front upper corner filler piece with the two rivets and the sealer (Figure 10-125).

11. Clean the excess sealer from the mating surfaces.

12. Install the new inner door seals. Check the door to frame fit and adjust the structure if necessary.

13. Install the rail and the P-seal on the top of the windshield with the (12) screws.

14. Install the new rubber D-seal between the P-seal and the rail.

15. Install the soft top and secure.

NOTE: Clean all the surface residue with a tape adhesion promoter before installing the extrusions with 2 sided tape.

16. Secure the tonneau/rear curtain extrusion to the body with the five lockwashers, capscrews and the four self-tapping screws.

Use windshield sealer between the extrusion and the body (Figure 10-119).

17. Install the 43 in. (109 cm) tonneau extrusion on the tailgate.

18. Secure the 9 in. (23 cm) tonneau extrusion to the rear of the wheelhouse.

H-RAIL SCREWS (3)

L-BRACKETS

H-RAIL

8-S10-004

SUPPORT STRUCTURE

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Body 10-103

19. Secure the 41 in. (104 cm) tonneau extrusion to the side of the wheelhouse, 2 in. (5 cm) from the rear corner edge of the

wheelhouse.

20. Install the velcro strips in the extrusions.

21. Install one velcro patch on each wheelhouse side and two velcro patches on each tailgate chain attachment channel.

22. Secure the two bow retainer brackets to the wheelhouses with the four screws (Figure 10-126).

23. Leak check the vehicle and add sealer where necessary.

24. Test drive the vehicle and check for wind noise.

CAUTION: The ideal crown height of the bow is shown. If there is excessive crowning of the bow, cut the end of the wood bow
with a saw to reduce the crown. Do not cut more than 0.25 in. (6 mm) at a time or the bow may become too short.

25. Measure and record the distance across the cargo bed, between each rear support bar brace. Add 0.25 to 0.50 in. (6 to 13 mm)

to this dimension and mark and cut the wood bow to this dimension.

26. Position the wood bow in the two retainer brackets. Lay a straight edge across the wheel houses as shown (Figure 10-126).

The ideal bow height is 1.5 in. from the straight edge to the bow crown.

27. Install the four-passenger soft top, tonneau cover and the slant-back soft top or station wagon soft top, if applicable. Refer to

the owner’s manual.

10-104 Body

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Figure 10-125: Rail and Support Structure Locations

Figure 10-126: Bow Retainer Bracket Installation

VELCRO

REAR, SIDE, P-CHANNEL

H-RAIL

B-PILLAR

COVER

C-PILLAR COVER

SUPPORT STRUCTURE

FRONT

FILLER PIECE

FILLER

B-PILLAR COVER

LOWER BRACKET

INSTALLATION

MEASURE

REAR SUPPORT

MEASURE DISTANCE BETWEEN

REAR SUPPORT

INNER FACE OF

BAR BRACES

BAR BRACE

DISTANCE

WHEEL HOUSE

IDEAL BOW HEIGHT

STRAIGHTEDGE

WOOD BOW

STRAIGHTEDGE

BOW

RETAINER

BRACKET

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Body 10-105

SOFT TOP SUPPORT ASSEMBLY

Removal

Remove the soft top.

Remove the interior grab handles.

Remove the vinyl wrap and padding from the roll cage assembly.

Remove the inner door seals.

Drill the rivets on the front corner filler plates located at the top front of the front door openings.

Remove the H rails, B- and the C-pillar covers (Figure 10-127).

Remove the hardware and the door striker from the B-pillar.

Remove the fasteners securing the windshield frame to the support structure and the rear supports to the body.

Using an overhead hoist, remove the support structure as a complete assembly.

10. Repair or replace the individual pieces as necessary, leaving the hardware loose, so the new pieces can be adjusted to the

structure once the unit is installed.

Installation

Apply sealer to the rear support where the body contact is made.

Lower the structure assembly onto the vehicle.

Install the hardware and strikers in the B-pillar and the front and the rear supports (Figure 10-127).

Install the H rail, B- and the C-pillar covers. Use the body sealer where removed.

Apply sealer to the filler plates and the rivet to the body using the existing holes.

Tighten the hardware on the assembly.

Install the new inner door seals.

Install the padding and the vinyl wrap on the soft top support bar assembly.

Install the interior grab handles.

10. Install the soft top and leak check.

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