In the gauge cluster what does the #194 bulbs light up and what does the #74 bulbs light up?

 

I'm going to answer this for you, but next time do a search because I have mentioned what the bulbs does recently, along with a bunch of other active members. The 194s are the bulbs that go behind the actual gauges and the 74s are the overhead of the gauges that gives them more light so you will be able to see the numbers clearly.

 

Do you still need the 74s if you have indiglow gauges?

 

I would get them in white or blue LEDs just to be safe and after you install them see if you need them and if so then order them.

 

Actually, the 74s are for the needles. I think you can see a dark line moving across a blue field pretty easily, haha.

~Cheers~