GMC 1990 Light Truck Repair Manual page 312

4C4-26 K TRUCK FRONT AXLE
SLIDE SPACER RING AND
SPIDER ASSEMBLY BACK ON
SHAFT. REMOVE RETAINING RING AND
SLIDE SPIDER ASSEMBLY OFF OF SHAFT.
2. Shaft Retaining Ring
8. Spacer
12. Axle Shaft
Figure 51—Removing Spider Assembly
SLIDE SPACER RING
INTO GROOVE ON
8. Spacer Ring
12. Axle Shaft
Figure 52—Installing Spider Assembly
1. Tri-Pot Housing Assembly
12. Axle Shaft
Figure 53—Installing Tri-pot to Housing
SPIDER ASSEMBLY
F6731
F-6732
F-6733
4. Shaft retaining ring (2) in the groove of the axle shaft
(12) with J 8059.
• Slide the tri-pot spider (3) towards the end of the shaft
(12) and reseat the spacer ring (8) in the groove on the
axle.
• Place approximately half of the grease provided in the
seal (10) and use the remainder to repack the tri-pot
housing (1).
• Pinch the swage ring (9) by hand slightly to distort it
into an oval shape and slide it onto the large diameter
of the seal (13).
• Slide the tri-pot housing (1) over the tri-pot spider
assembly on the shaft (12) (figure 53).
• Slide the large diameter of the seal (10) with the large
swage ring (9) in place over the outside of the tri-pot
housing (1) and locate the lip of the seal in the housing
groove.
• Position the tri-pot assembly at the proper vehicle
dimension as shown in figure 54.
Important:
The seal (13) must not be dimpled, stretched or
out of shape in any way. If the seal is not shaped
correctly, slide the swage ring (9) off the seal
and onto the housing (1). Carefully insert a thin
flat blunt tool (no sharp edges) between the
seal opening and the housing to equalize pres­
sure. Shape the seal properly by hand and
remove the tool.
Return the swage ring (9) to position on the seal
(13).
Refer to the chart in figure 47 and select the
proper size swage clamp tool J 36652.
Mount the swage clamp tool in the vice and pro­
ceed as follows:
Position the inboard end of the axle assembly
in the tool.
Place the top half of the proper size tool on the
lower half of tool and check for proper align­
ment and dimension (figures 47 and 54).
Insert the bolts and tighten by hand until snug.
Figure 54—Tri-pot Seal Installation Measurements