Hello all, this is my first post of many to come.
I am a new owner of my Grandfathers 66 c10 lwb stepside. 250 six 3 on the tree one wheel wonder. In fact it's a wonder its still attached to the frame but that is for another post.
Right now it's cold here in Seymour, TN and the old truck hasn't had a heater in it since the Carter admin. I have looked at many suppliers and they all have the deluxe listed. Chevy duty lists one core for both heaters and LMC list 3 different cores and heaters. Question is will a deluxe core fit a thrift air box or not? Any help or thoughts appreciated.
