Chevrolet 70 1969 Series, Shop Manual

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C AB A N D BO DY M O U N T IN G S 1-52
STUD TYPE MOUNTING TAPPED PLATE TYPE MOUNTING
1 Lock Nut
2 Nut
3 Clip Plate (not tapped)
4 Metal Channel
5 Longitudinal Sill
6 Spacer Block
7 Frame Side Rail
8 Wood Filler Block
9 Mounting Stud
10 Clip Plate (Tapped)
I
2
3
U-BOLT
TYPE MOUNTING
I I Mounting Bolt
12 Lock Washer
13 U-Bolt Clip
14 U-Bolt
Figure 2 — Recommended Methods of Mounting Body
extend beyond width of frame flanges to permit
grooving blocks to maintain position of mounting
bolts. If desired, block can be attached to sill with
screws as shown in figure 2.
Wood grain of block should be perpendicular
(up and down) to grain of sill.
5. Wood sills must be chamfered 1 /2 " at the
front end, tapering to meet the frame 12 to 18
inches from end of sill (fig. 1). Tapered front of
sill is required for all Van or torsionally rigid
bodies. Notch or spot drill sill to clear the rivet
heads.
6 .
To prevent mounting clip plate becoming
embedded in longitudinal sill, install a sheet metal
channel on top of sill at each mounting point (figs.
1, 2, and 3). Rabbet grooves along each side of
top edges of longitudinal sills to permit flush
mounting of sill channels.
MOUNTING BOLTS
1. Install one mounting near front end of sill,
one near rear end of sill, and space others as
nearly equal as possible between front and rear
mountings. It may be necessary to vary distances
to clear chassis brackets, etc., but approximately
equal spacing should be maintained.
2. Use two bolts or studs of proper length with
a diameter of at least 7 /1 6 " and preferably 1 /2 "
for each mounting. Use a clip plate, of same thick­
ness as diameter of bolts, at upper and lower end
of bolts. Use at least three, and preferably four
mountings on each side.
3. Hex head bolts are preferred for body
mountings; however, carriage bolts, U-bolts, and
threaded rods (studs) can also be successfully
employed. If design of body does not permit use
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L