the ones toward the left i bought them from jason at A+ but my car is in the shop and im glassing my dash and im going to set up three more anyone have idea
 
 
yup they are 2 1/16" gauges
 
 
when people fiberglass what  do they use to make them fit in there... do they use pvc pipe if so what size
 
you can use pvc, or you can take some wood and use a 2 " hole saw and make rings for them. i personally suggest the hole saw, because you have more control of how it will go together. 
