Chevrolet 1977 light duty truck Service Manual page 155

Fig. 2D-72- D isconnecting Sash from Regulator
REM O VABLE TO P-FO LDING TO P (1 6 ONLY)
Removal
1. Remove the bracket-to-roof bolt from each o f
the top-to-header panel attaching brackets as shown in
Figure 2D-77.
2. Remove the bolts which retain the top to the
body side panels, shown in figure 2D-78.
3. Lower the rear window into the endgate, and
lower endgate.
4. Lower the door windows.
5. Slide top rearw ard approxim ately 18" to expose
the bottom re a r top-to-pickup box attaching holes.
6. To prevent possible flexing o f the sides on
removal, connect the sides o f the top with support braces
as follows.
a. Fabricate 2 braces 72" long from wood or
square a lum inum tubing. Drill two (2) 3 / 8 " diam eter
holes, 63 inches apart in the brace.
Fig. 2D-73--Removing Regulator
Fig. 2D-74--Outside Handle
b. Attach one brace to the holes exposed in Step
7.
c. Slide top forward to expose the front bottom
top-to-pickup box attaching holes.
d. Attach the second brace to these holes.
7. With assistance,
rearw ard for removal.
M andatory Assembly Sequence (Fig. 2D -78 )
Removable top must be clamped in direction of
arrow A at pints X and Y. Clam p load must be great
enough to force the removable top against the steel cab
at the attachm ent locations. After clamping, bolting must
start with the rear vertical bolt (1) and then going
forward, install (2), (3) and (4). W hen all but the front
bolt (5) are in place, release the clamp and drive the
front bolt. Then drive the horizontal bolts into the steel
cab.
lift the top and move it