96 960: Instrument cluster bulbs

[CIK7]

Once again I'm dealing with the lighting on my car. I'll be updating my car by removing the wired strips I installed and replacing with led bulbs as someone (perhaps RHP or Cookeh) suggested. Now I'm trying to track down IC bulb socket/size numbers. It appeared in one pic I found somewhere (don't remember) that the 850, 960, csv70 ICs all have 2 bulb sizes. I want to replace with LEDs because I have to take the IC out to replace a few anyway. The part# I found was 9148908. Isn't there a second one? And is there a common p/n for 9148908? For example, the common p/n (bulb socket) for brake/turn lights are 1156 and 1157.