Chevrolet 1980 Light Duty Truck Service Manual page 321

G and K models w ith 16 splines
phased as shown in figure 4A-19.
1. For models with one piece propeller shafts, slide
shaft into transmission and attach rear U-joint to axle.
On vehicles with two piece propshafts, the front
propshaft yoke m ust be bottomed out in the transmission
fully forward before installation to the hanger .
2. For C-P models with two-piece propeller shafts,
proper phasing is accomplished with the alignment key,
shown in figure 4A-18.
3. For G-K models with two piece shafts, install front
half into transmission and bolt support to crossmember.
a. Slide grease cap and gasket onto rear splines.
b. Rotate shaft so front U-joint trunnion is in correct
position. See figure 4A-19.
c. Take rear propeller shaft and before installing, align
U-joint trunnions as shown in figure 4A-19. Attach rear
U-joint to axle. Tighten grease cap.
d. Torque bearing support to crossmember and U-joint
to axle attachments.
CO N STA N T VELOCITY UNIVERSAL JO IN T
(Snap Ring Type) RETENTION
must be
Disassembly
1. Remove auxiliary front propeller shaft from vehicle.
2. Remove rear trunnion snap rings from center yoke.
Remove grease fitting.
2-Piece prop shaft must be
assembled as follows to prevent
excessive drive line excitation:
1. Transmission yoke must first
be placed in vertical position.
2. Front yoke of Rear Prop
shaft is set horizontal as shown.
Fig. 4 A -1 9 -A lig n m e n t for Phasing
PROPELLER SHAFT
LIQH T TR U CK 8E R V IC E M AN UAL
4A-9