1984-1989 Center LCD Light Diffuser tach

1984-1989 Center LCD Light Diffuser tachDiffusers broken or melted? Ours aren't! These clear plastic panels act as a light pipe, carrying light from the bulbs to the information areas of the LCDs. Unfortunately, the factory bulbs generate too much heat, and eventually melt the diffusers in the area where they surround the bulbs. Melted, bubbled or discolored diffusers can result in an image that's half as bright as one with proper, clear diffusers! It's also common for the small mounting

but works with the headlights on

Signs your Power Supply may be defective

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Over the years

such as "Service Engine Soon" and "Door Ajar"

1 - 2" long

or if your U9 IC gets hot to the touch

1 - Zener Overvoltage Diode (Top Board)

Note: This will not work on a 1984 Corvette Cluster

For use with GM factory terminals

3: CR8 (Unmarked on older models)

16: R74 (R55 on older models)