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F10YP788408
129" paint code "FM" F100 B81 Trans "A" Axle "17"
05000lbs 172hp at 4000 dso 44
I guess my major questions are regarding the axle code and transmission code. I was also looking at LMC's decoder and it does not list a "y" engine code for 1966.
I got the truck from my uncle and he said he replaced the axle (not sure if whole axle or just ring/pinion) but I would like to take it back to stock so I need to know what ratio was in it.
As I always say, you'll get a more complete decode from Number Dummy. But while you're waiting for him to see your thread, here's some preliminary information: F10 = two wheel drive F100 pick-up. Y = 352 CID V8, 2bbl engine. LMC's catalogue is in error. Code D was the 352 in 1965 only. Code Y is correct for the 352 in 1966 and 67. P = built in Minneapolis/St. Paul. 788408 tells us it was built in December, 1965. 129 = your wheelbase in inches (it's a longbed). You have a two tone paint job: F = Arcadian (light) Blue. M = Wimbledon White. Model F100 means it's a 1/2 ton pick-up with a 5000# GVW. Interior B = blue woven plstic and blue vinyl. 81 = conventional cab. Transmission A = New Process 4 speed with granny low. Axle 17 = Ford 9 inch with 3.25 gears and no limited slip. 5000# is your maximum gross vehicle weight. Your engine's maximum net horsepower is 172 at 4000 rpms. District Sales Office 44 is Minneapolis/St. Paul.
129" does not decode to a longbed. Since these trucks were also available as a Cab & Chassis, or with a factory installed Stake or Flat Bed, 129" only decodes to the wheelbase.
BODY code B81: B = Medium Blue Crush Vinyl & Medium Blue Cody Pattern Woven Plastic // 81 = 81B Custom Cab.