Suzuki GRAND VITARA XL-7 Owner's Manual page 461

7B1-52 AUTOMATIC TRANSMISSION (4 A/T)
5) Remove retaining ring (1) and then remove direct clutch
input hub.
6) Remove retaining ring and then remove all clutch discs.
7) Using special tool and hydraulic press, compress forward
clutch piston return spring and remove retaining return
spring.
Special tool
(A) : 09926-98310
CAUTION:
Be careful when applying pressure, for overpressure will
cause plate section of piston return spring to deform.
8) Remove forward clutch piston return spring.
9) Install forward clutch to O/D case. Blow low pressure air into
fluid hole at the right of cut in O/D case to remove forward
clutch piston.