When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
radiator mounting straps between 65 and 66...just gotta swap the radiator straps though...the battery trays are also different between 65 and 66...you already mentioned the fender apron attachment differences...which for 65 and 66 are the same for the 2WD trucks...the 61-64 support is the same one used on 65 F100-250 4WD and F350 as well as 66 F250 4WD and F350 trucks.
On radiators, the side mounting straps as they are called are attached to the radiator using solder I believe...its been a few years since ive seen a radiator rodded out...but the cores and tanks on the 65-6 trucks with the 352, for example are dead nuts identical...the difference is the straps on the radiator...a quick and easy thing to swap if you happen to have the other years straps vs what you are working on...If you have the other straps...it takes all of about 5-10 minutes at a radiator shop to swap and paint...
I understand now; the straps are on the radiator itself; I plan on using a mid 70's radiator; so I check into converting the straps. Had to due alittle modification on my Highboy radaitor; shouldn't be too much of a challenge.
Thanks for your input CS65.