GMC 1982 Light Duty Truck Service Manual page 213

DESCRIPTION
The weight of the sliding side door is supported by the
upper rear hinge-and-roller assembly, and by the lower front
catch-and-roller assembly. The front and rear latches retain
the door in the locked position, while the rear wedge
assembly restricts door vibration on rough road surfaces.
ADJUSTMENTS
NOTICE:
See N O T I C E on page 1 of this section
regarding all sliding door fasteners and adjustments
found below.
T he side door can be adjusted for alignment a nd/or
clearance in the body opening and for proper latching.
W hen properly positioned in the body opening, the door
should have equal clearances arou nd its perim eter.
Adjustments for door positioning and proper latching can be
made at the locations shown in figure 2D-121.
Up and Down
Up and down adjustments are provided by means of
slotted holes located at the upper front roller, view B of
figure 2D-121; at the lower front catch-and-roller, view D;
and at the upper rear hinge-and-roller assembly, view A. To
reposition the door up or down:
1. Partially open door and loosen front latch striker on
pillar.
2. Remove upper rear hinge cover, shown in figure 2D-
.
122
3. Loosen upper rear hinge-to-door bolts.
4. Loosen rear lock striker and door wedge assembly.
5. Align rear edge of door up or down, then tighten upper
rear hinge-to-door bolts to specifications.
6. Loosen upper front roller bracket-to-door bolts.
7. Partially close door and align front edge of door up or
down by loosening front lower hinge-to-door bolts.
W hen door is correctly positioned, tighten bolts to
specifications.
8. Position upper front roller in center of track, then
tighten roller bracket to door.
9. Adjust front and rear strikers and rear wedge assembly
as outlined in their respective procedures later in this
section.
In and Out
Front in and out adjustments are provided by means of
an adjustable lower roller mounting bracket, view D of
figure 2D-121, and by a slotted upper bracket, view B of
figure 2D-121. Rear in and out adjustment is provided by
adjusting the rear latch striker, view E of figure 2D-121. To
position the door in or out:
1. Loosen front latch striker.
2. Loosen upper front roller from its bracket.
3. Loosen lower front roller bracket-to-arm bolts.
4. Adjust front of door in or out, then tighten bolts to
specifications.
SLIDING SIDE DOOR
5. A djust door hold open catch bracket, rear wedge
assembly, rear latch striker, upper front roller and front
latch striker as outlined later in " Adjustments ".
Fore and Aft
Fore and aft adjustment is provided at the upper rear
hinge striker by means of a slotted bracket mounted to the
body, view A of figure 2D-121.
1. Partially open door and remove front latch striker and
rear lock striker.
2. Loosen rear wedge assembly.
3. Remove upper rear track cover.
4. Loosen upper rear hinge striker.
5. Move door assembly forward or rearward, then tighten
striker bolts to specifications.
6. Reinstall upper rear track cover.
7. Reinstall front and rear latch strikers.
8. Adjust latch strikers and rear wedge assembly as
outlined below.
Latch Striker Adjustments
Front Striker
1. Loosen front latch striker screws, view C of figure 2D-
121.
2. Visually align latch-to-striker relationship and adjust if
necessary.
3. Slide door slowly toward striker. The guide on the door,
just above the latch, must fit snugly within the rubber-
lined opening on the striker assembly.
4. Assure that the latch engages fully into the striker. Add
or delete shims behind the striker as necessary.
5. Tighten striker screws to specified torque.
Rear Striker
1. Loosen striker with J-23457.
2. Loosen rear wedge assembly.
3. Center the striker vertically to door striker opening.
4. Adjust the striker laterally to match outer panel to the
body panel surfaces, view E of figure 2D-121.
5. Apply grease to the striker.
6. Gently push the door in until the rear lock contacts the
striker enough to make an impression in the grease.
7. Open the door and measure the distance from the rear
of the striker head to the impression. The distance
should be between .20 inch (5mm) and .30 inch (8mm).
Refer to view E of figure 2D-121.
8. Adjust position of striker by adding or deleting shims
between the striker and the pillar.
9. Adjust rear wedge assembly as outlined later in this
section, and torque all fasteners to specifications.
Upper Rear Hinge-To-Striker Adjustment
NOTICE: If door has been removed and is being
reinstalled, adjust striker-to-lower hinge lever before
closing door. Failure to do so may cause possible lever
breakage.
The upper rear hinge must be positioned as shown in
BODY 2D-51