For 1990-2009 cars

1. Install the following components into the lower valve body (23), securing with one key (4):

• | The primary regulator valve (1)

• | The primary regulator valve spring seat

• | The primary regulator valve spring (2)

• | The primary regulator valve No. 1 plunger (6)

• | The primary regulator valve No. 2 plunger (3)

• | The primary regulator valve sleeve (1)

2. Install the following components into the lower valve body, securing with one key (8):

• | The cut-back valve spring (10)

• | The cut-back valve (9)

• | The cut-back valve plug (7)

3. Install the following components into the lower valve body, securing with one key (12):

• | 2-3 shift valve spring (14)

• | 2-3 shift valve (13)

• | 2-3 shift valve plug (11)

4. Install the following components into the lower valve body, securing with one key (16):

• | 1-2 shift valve spring (18)

• | 1-2 shift valve (17)

• | 1-2 shift valve plug (15)

5. Install the following components into the lower valve body, securing with one key (20):

• | The reverse control valve (22)

• | The reverse control valve spring (21)

• | The reverse control valve plug (19)

6. Install the following components into the lower valve body (1), securing with one key (2):

• | The accumulator control valve (5)

• | The accumulator control valve spring (4)

• | The accumulator control valve plug (3)

7. Install the following components into the lower valve body, securing with one key (6):

• | The low coast modulator valve (9)

• | The low coast modulator valve spring (8)

• | The low coast modulator valve plug (7)

8. Install the following components into the lower valve body, securing with one key (10):

• | The second coast modulator valve (13)

• | The second coast modulator valve spring (12)

• | The second coast modulator valve plug (11)

9. Install the following components into the lower valve body:

• | The pressure relief valve check ball (16)

• | The pressure relief valve spring (15)

• | The pressure relief valve retainer (14)

• | The pressure relief valve screw

10. Install the following components into the lower valve body:

• | The cooler by-pass valve spring (17)

• | The cooler by-pass valve (18)