Necessary equipment
- J-28585 Snap Ring Remover
- J-23327 Clutch Spring Compressor
- J-25024-A Clutch Spring/Booster Piston Compressor
- J-45186 Forward and Direct Drive Clutch Spring Compressor
1. Remove the flange, disc and plate of the underdrive clutch (C3).
- Remove the retaining ring with a screwdriver.

- Remove 1 flange, 4 discs and 4 plates.

Important: Care must be taken not to damage the front underdrive planetary sun gear.
2. Remove the underdrive clutch return spring assembly (C3).
- Place J-25024-A in a vise with the clamp bolt down and pulled back.
- Install J-45186 to the underdrive clutch assembly return spring (C3).
- Place J-21420-2 from J-23327 on top of J-25024-A jack bolt.
- Place the clutch housing with J-45186 on J-21420-2 and under the shoulders of J-25024-A.
- Use the pressure bolt to compress the clutch spring so that the retaining ring can be removed.
- Using J-28585 or snap ring pliers, remove the snap ring.
- Remove the return spring assembly.

Caution: When working with compressed air, wear protective glasses to prevent eye injury.
3. Remove the underdrive clutch piston (C3).
- Close any 2 holes of the 4 holes of the underdrive clutch lubrication channel (C3) with your fingers. Apply compressed air (4 kg/cm?) to any 1 hole and remove the C3 piston.

- Remove the sealing rings from the C3 piston.
[The article is based on data from the website ChevyMan.ru]
