Automatic Transmission Components

During reassembly, please refer to the spring specifications below to help you to discriminate between the different springs.

Fig 1: Upper Valve Body Spring Component View

Courtesy of GENERAL MOTORS CORP.

Mark	Name	Color	Free Length		Outer Diameter		Total Number of Coils
Mark	Name	Color	Metric	English	Metric	English	Total Number of Coils
1	3-4 Shift Valve	Red	25.5 mm	1.0039 in	9.73 mm	0.3831 in	7.75
2	Lock Up Control Valve	Yellow	20.87 mm	0.8217 in	5.55 mm	0.2185 in	11.15
3	Reverse Control Valve	-	25.58 mm	1.0071 in	8.64 mm	0.3402 in	8.75
4	Secondary Regulator Valve	White	34.56 mm	1.3606 in	8.8 mm	0.346 in	12.27
5	Reverse Clutch Accumulator Piston	-	65.4 mm	2.5748 in	17 mm	0.669 in	13.7
6	2nd Brake Accumulator Piston - Outer	White	69 mm	2.7165 in	16 mm	0.63 in	15.1
7	2nd Brake Accumulator Piston - Inner	-	45.9 mm	1.8071 in	10.5 mm	0.413 in	16.9
8	3-4 Shift Timing Valve	Pink	28.41 mm	1.1185 in	6.4 mm	0.252 in	10.49

Fig 2: Upper Valve Body Key Component View

Courtesy of GENERAL MOTORS CORP.

Automatic Transmission Components

Mark	Retainer	Height		Width		Thickness
Mark	Retainer	Metric	English	Metric	English	Metric	English
1	Check Valve	11.5 mm	0.453 in	5 mm	0.197 in	3.2 mm	0.126 in
2	Secondary Regulator Valve	16 mm	0.63 in	5 mm	0.197 in	3.2 mm	0.126 in
3	Lock Up Control Valve	16 mm	0.63 in	5 mm	0.197 in	3.2 mm	0.126 in
4	Reverse Control Valve	11.5 mm	0.453 in	5 mm	0.197 in	3.2 mm	0.126 in

Fig 3: Upper Valve Body Check Ball Component View

Courtesy of GENERAL MOTORS CORP.

Automatic Transmission Components

Name	Metric	English
Check Ball	5.535 mm	0.21791 in

Fig 4: Lower Valve Body Key Component View

Courtesy of GENERAL MOTORS CORP.

Automatic Transmission Components

Mark	Retainer	Height		Width		Thickness
Mark	Retainer	Metric	English	Metric	English	Metric	English
1	4-3 Shift Timing Valve No. 1	36 mm	1.417 in	5 mm	0.197 in	3.2 mm	0.126 in
2	2-3 Shift Valve	10 mm	0.394 in	5 mm	0.197 in	3.2 mm	0.126 in
3	1-2 Shift Valve	10 mm	0.394 in	5 mm	0.197 in	3.2 mm	0.126 in
4	Primary Regulator Valve	9.8 mm	0.386 in	5.2 mm	0.205 in	3.2 mm	0.126 in
5	Lock Up Relay Valve	16 mm	0.63 in	5 mm	0.197 in	3.2 mm	0.126 in
6	Solenoid Modulator Valve	24 mm	0.945 in	5 mm	0.197 in	3.2 mm	0.126 in
7	Low Modulator Valve	24 mm	0.945 in	5 mm	0.197 in	3.2 mm	0.126 in

Fig 5: Differential Case Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Differential Pinion Thrust Washer
2	Differential Pinion Gear
3	Differential Side Gear Thrust Washer
4	Differential Side Gear
5	Pin
6	Differential Pinion Shaft
7	Oil Seal
8	Side Bearing Outer Race
9	Tapered Roller Bearing
10	Differential Case
11	Differential Ring Gear
12	Tapered Roller Bearing
13	Side Bearing Outer Race
14	Shim
15	Oil Seal