GMC 1976 ZEO 6083 Maintenance Manual page 499

Figure 64-Removing or Installing Inner Seal
Figure 65-Removing or Installing Outer Seal
Figure 66-Installing Intermediate Clutch Piston
TRANSMISSION 7- 5 1
Figure 67-Installing Nylon Spring Guide
does not get caught in snap ring groove, and install
snap ring with Snap Ring Pliers . J-8059 or J-5586 .
Remove tools.
7 . If necessary, install four oil seal rings on the
center
NOTE :
If teflon rings are being used, make
sure slit ends are assembled in same relation as
cut, Figure 68 . Also, make sure oil seal rings are
scated in ring grooves to prevent damage to
rings during reassembly of mating parts over
rings.
8 . Air check operation of intermediate clutch and
piston . Apply air through center oil feed hole to
actuate clutch piston, Figure 69 .
Figure 68-Installing Teflon Oil Seal Rings