Suburban 3/4 Ton 4WD V8-305 5.0L (1986)
pushing cover against housing.
4.
Install and tighten side cover screws.
Install Stub Shaft Flange
Rotate stub shaft slightly over two complete turns from either extreme right or left turn. This will place gear in center position, which will place torsion
bar pin through stub shaft in a straight up and down position.
Rotate flange so the bolt with the large head is in top position. Visually align the block tooth in the serrations of the flange with the torsion bar pin and
install flange on stub shaft. Tighten flange clamping bolt.
Subassemblies, Install
Fig. 25 Installing adjuster plug
Fig. 26 Installing rack-piston seal compressor
1.
Position gear housing in vise with adjuster plug end facing up.
2.
Lubricate worm shaft, lower thrust bearing and races with power steering fluid, then position thrust bearing and race on worm.
3.
Align valve body drive pin on worm with narrow pin slot on valve body. Be sure O-ring seal between valve body and worm head is installed.
4.
Position valve body and worm shaft in housing as a unit.
Do not push against stub shaft as this might cause stub shaft and cap to pull out of
valve body, allowing spool seal to slip into valve body oil grooves. Valve assembly can be installed by pushing on outer diameter of valve
body housing with the fingers of both hands. Make certain that Teflon rings are not binding on inside of housing. Valve is properly seated
when oil return hole in gear housing is fully visible.
5.
Place a suitable seal protector over end of stub shaft,
Fig. 25.
6.
Lubricate new adjuster plug O-ring seal with power steering fluid and install in groove on adjuster plug.
7.
Install adjuster plug over end of stubshaft and tighten just enough to make certain that all parts are properly seated in gear housing. Remove seal
protector.
8.
Install adjuster plug lock nut loosely on adjuster plug.
9.
Install seal compressor in gear housing, holding it tightly against shoulder in housing,
Fig. 26.
10.
Insert rack-piston into housing until arbor engages worm. Turn stub shaft clockwise, using a suitable wrench to draw rack-piston into housing.
