Here is a pic of my Polara data plate. Positions circled.
As stated earlier, under the AB 80=426, 70=413(340HP), 71=413(360HP), 62=383
under D 3=4spd, 5=auto, 2=3spd HD, 1=3spd
other things to look for:
Radiator #2524989 should also have the 2 piece metal rad shroud.
machined pad on...