dash lights

I have a 1990 v6 pickup. It has the sr5 instrument cluster. I want to replace the bulbs that light up the gauges with white led lights. I know the larger lights are 194. My question is what are the smaller bulbs as well as the hvac control bulb? My last car had similar lights in the dash and I think They were 71 or 74. I don't have it anymore to compare.