Greasy, something you could do is check out the Gallery on this site, find a '61 whose owner is mechanically savvy (you can usually tell from the blurb that goes with the truck pic) and send him/her your question in a Personal Message (refer to the FAQs to find out how).

Also recommend you post your query at www.oldtruck.net --lively site, and quite, ahem, peppery compared with here! Both places have knowledgeable truckheads.