Dodge D150 1990 Service Manual page 974

Rear wheel drive ram truck

Table of Contents

AUTOMATIC TRANSMISSION

Fig. 29 Marking Annulus And Output Shaft For

Discard o l d gaskets and seals. Do n o t a t t e m p t t o

salvage these parts. Replace a n y o f t h e overdrive

u n i t snap rings i f distorted or damaged. I f i n doubt

about the condition o f a p a r t i c u l a r snap r i n g , replace

i t . Refer to Figure 31 for snap r i n g i d e n t i f i c a t i o n .

M i n o r nicks or scratches on components c a n be

smoothed w i t h crocus cloth. However, do not a t t e m p t

to reduce severe scoring on a n y components w i t h

Fig. 30 Removing Annulus Gear

abrasive materials. Replace severely scored compo-

nents; do not t r y t o salvage t h e m .

E x a m i n e the overdrive and direct clutch discs and

plates ( F i g . 31). Replace t h e discs i f t h e facing is

w o r n , severely scored, or b u r n e d and f l a k i n g off. Re-

place t h e clutch plates i f w o r n , heavily scored, or

cracked. Check t h e lugs on t h e clutch plates for

wear. The plates should slide freely i n the d r u m . Re-

place the plates or d r u m i f b i n d i n g occurs.

SLIDING HUB DIRECT THRUST

PLANETARY GEAR ASSEMBLY OVERRUNNING CLUTCH

SNAP RING CLUTCH BEARING

DIRECT CLUTCH

OVERDRIVE WAVE SPRING

ANNULUS GEAR

(CLUTCH DRUM)

DIRECT CLUTCH

CLUTCH PISTON

(SAFETY RING)

Fig. 31 Overdrive Geartrain Components