[SBSerpent]

Originally Posted by spdbrake

They use 158 4watt wedge base bulbs.

Your bulb socket may not be fully seated in the gauge causing the dimness, or someone may have installed a off brand bulb.
Snaps out of the back of the the gauges.
https://www.summitracing.com/parts/vdo-600840?rrec=true


Bulbs (4 to a pack if you'd like them all to look the same) https://www.summitracing.com/parts/vdo-600815?rrec=true
You can get these at NAPA , Autozone etc...

Red bulb boots (They go on mucho easier with squirt of isopropyl alcohol)
https://www.summitracing.com/parts/v...xoChC0QAvD_BwE

Easy access if you pull the speedo out. No need to disconnect it.

Just to be clear, there is one bulb in the small gages and two bulbs in the larger gages (speedo and tach)?

Ordered direct replacement T10 red LEDs so hopefully that should dramatically improve the illumination.