Isuzu Trooper (1998-2002 year). Manual - part 748

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–189

247RY00013

248RY00017

247RY00014

248RY00010

With wooden blocks under the output shaft, stand the
transmission on the output shaft.

10. Snap ring

Using snap ring pliers, install the snap ring.

11. Race

Coat the bearing race with petroleum jelly and install it onto
the front planetary gear.

12. Second coast brake band

Insert the second coast brake band to the case.

Bearing race diameter (Reference) 

mm (in.)

Bearing race

Diameter

Inside

34.3 (1.350)

Outside

47.8 (1.882)

7A–190

AUTOMATIC TRANSMISSION (AW30-40LE)

248RY00021

248RY00022

248RY00023

247RY00015

13. E–ring and pin

Install the pin through the brake band.

Install the E–ring to the pin.

14. Bearing and race

Coat the bearing and race with petroleum jelly and install
them onto the forward clutch.

15. Race

Coat the race with petroleum jelly and install it onto the
front planetary ring gear.

Bearing and race diameter (Reference) 

mm (in.)

Inside

Outside

Bearing

26.0 (1.024)

46.7 (1.839)

Race

26.0 (1.024)

48.9 (1.925)

Race diameter (Reference) 

mm (in.)

Inside

Outside

Race

26.8 (1.055)

47.0 (1.850)

AUTOMATIC TRANSMISSION (AW30-40LE)

7A–191

247RY00016

247RY00017

247RY00019

247RY00018

Align the flukes of the discs in the forward clutch.

16. Front planetary ring gear

Align the spline of th front planetary gear with the flukes of
the discs and install the front planetary gear to the forward
clutch.

17. Bearing and race

Coat the bearing and race with petroleum jelly and install
them onto the ring gear.

18. Direct clutch and forward clutch

Install the assembled direct clutch, forward clutch and front
planetary ring gear into the transmission case.

Bearing and race diameter (Reference) 

mm (in.)

Inside

Outside

Bearing

32.6 (1.283)

47.7 (1.878)

Race

30.6 (1.205)

53.6 (2.110)

7A–192

AUTOMATIC TRANSMISSION (AW30-40LE)

248RY00024

248RY00025

248RY00026

248RY00027

Using vernier calipers, measure the distance between the
sun gear input drum and direct clutch drum as shown in the
figure.

If the values are nonstandard, check for an improper
installation.

Coat the assembled bearing and race with petroleum jelly
and install it onto the forward clutch.

19. Second coast brake piston assembly

Coat the oil seal ring with ATF and install it to the second
coast brake piston.
Install the washer, spring and piston to the piston rod.
Install the E–ring.
(1): Second coast brake piston
(2): Oil seal
(3): Piston rod

20. Snap ring

Coat two new oil seals with ATF and install them to the
piston cover.
Install the spring, second coast brake piston assembly and
piston cover to the case.
Using snap ring pliers, install the snap ring.

mm (in.)

Height

9.8 – 11.8 

(0.386 – 0.465)

 Assembled bearing and race diameter (Reference) 

mm (in.)

Inside

Outside

Bearing 

and race

33.7 (1.327)

47.8 (1.882)