GM Service Manual Online
For 1990-2009 cars only

Spring

Free Length

Coil Outer Diameter

Number of Coils

Color

Secondary Regulator Valve Spring

36.80 mm (1.449 in)

7.70 mm (0.303 in)

11.2

None

Lock-up Relay Valve Spring

18.80 mm (0.740 in)

5.10 mm (0.201 in)

12.5

None

3-4 Shift Valve Spring

25.50 mm (1.004 in)

9.70 mm (0.382 in)

5.75

Red

Down Shift Plug Spring

27.30 mm (1.075 in)

8.70 mm (0.343 in)

10.5

Yellow

Throttle Valve Spring

17.50 mm (0.689 in)

6.40 mm (0.252 in)

8.25

Red