The transmission has four speeds FORWARD
and two speeds REVERSE. It has planetary gear
systems and six hydraulic clutches. The No. 6 clutch is
a rotating clutch and acts as the output member. It
fastens to the output gear.
The transmission output gear is connected to
transfer gear with splines. The transfer gear is
connected with splines to the output shaft. The output
shaft is connected by a yoke and universal joint to the
1. Piston. 2. Springs. 3. Plates. 4. Ring gear. 5.
Discs. 6. Clutch housing.
The six transmission clutches are the disc type
and in separate housings. Each clutch has discs (5) and
plates (3). The inside teeth of discs (5) are engaged
with the outside teeth of ring gear (4). Notches on the
outside diameter of plates (3) are engaged with pins in
the clutch housing. The pins keep the plates from
The springs (2) are between clutch housing (6)
and piston (1). The springs keep the clutches
disengaged (not engaged). The clutches are engaged
when oil is sent into the area behind piston (1). When
the pressure of the oil in the area behind the piston
increases, the piston moves to the right. The piston
moves against the force of springs (2) and pushes the
discs and plates together. The clutch is now engaged.
The discs keep ring gear (4) from turning. When the
clutch is released, the pressure in the area behind piston
(I) decreases and the springs now push the piston to the
left. The discs and plates are now apart. The clutch is
The three front clutches (No. I1, No. 2 and No.
3) are direction clutches. The No. 2 clutch is the
REVERSE direction clutch. The No. I and No. 3
clutches are the FORWARD direction clutches. The
three rear clutches (No. 4, No. 5 and No. 6) are speed
clutches. No. I clutch is a direction clutch for FOURTH
A speed and a direction clutch must be engaged
in the transmission before power goes through the
NOTE: No. 6 clutch Is Inside output transfer gear