How many years did GM run the low cab for GMC and Chevy , 1936 to when ? Bowtie Bits sells a die cut headliner for 37 to 38. Also a fiberglass healiner for 36 to 38. When I call to inquire and possibly order the die cut headliner they told it would not work on my 36 and could not give me a reason why and steered to the fiberglass which I really do not want. Mike