https://www.corvair.org/chapters/corvanatics/files/documents/brochures/64TDB.pdfI�m new to this forum. Skulptorchaz, congratulations on owning a great 64� GMC van ride. Best mpg can be a puzzle. Maybe begin by sharing more about your 64 van? GMC built lots of variations of it. What�s its GVWR? What tire size? ..etc, etc, etc. I found this pdf online. Looks like it contains much info to understand most about your van. Hope it helps.
