Dodge ram truck 3500 1996 Service Manual page 1479

BR NV4500 MANUAL TRANSMISSION 21 - 89
DISASSEMBLY AND ASSEMBLY
(Continued)
Fig. 150 Fourth Speed Stop Ring Instaliation
Fig. 151 Fourth Speed Clutch Gear Installation
(2) Grip mainshaft at pilot bearing hub and just
behind * rear bearing. Then lift assembly and guide
rear of shaft through bearing bore at rear of case.
(3) Continue holding front of shaft but switch grip
at rear to shaft output splines. Lift mainshaft assem­
bly slightly, align gears and seat assembly i n case. Be
sure fourth speed clutch gear and stop ring were not
displaced during installation (Fig. 152).
MAINSHAFT
Fig. 152 Mainshaft And Geartrain Installed In Case
(4) Install drive gear thrust bearing on mainshaft
(Fig. 153). Use plenty of petroleum jelly to hold bear­
ing in place.
(5) Check alignment and mesh of mainshaft gears.
If gears are not aligned, roll case on side and realign
shaft and gears in case.
Fig. 153 Drive Gear Thrust Bearing instaliation
DRIVE GEAR AND RETAINER INSTALLATION
(1) Install bearing on drive gear with Installer Tool
6448 (Fig. 154).
SPECIAL
^ - T O O L
6448
Fig. 154 Installing Front Bearing On Drive Gear
(2) Lubricate pilot bearing with petroleum jelly
and install i t in drive gear bore.
(3) Install drive gear on mainshaft. Work gear
rearward until mainshaft hub is fully seated in pilot
bearing.
(4) Install bearing cup in front retainer with
Driver Handle C-4171 and Installer C-4308 (Fig.
155).
(5) Install new oil seal in front bearing retainer
with Tool C-4595 or 6052 (Fig. 156). Use one or two
wood blocks to support retainer as shown. Lubricate
seal lip with petroleum jelly after installation.
(6) Clean contact surfaces of gear case and front
bearing retainer with a wax and grease remover.
(7) Apply Mopar Gasket Maker to flange surface of
front bearing retainer (Fig. 157).
(8) Install front bearing retainer over drive gear
and start i t into case.