I just picked up my 64 f100 and the more and more i look at it it doesnt look like a 64 so i found the vin on the door which looks like its been swaped and i found the vin on the frame and the 2 do not match so i need help decoding them
the last 6 digits are 570088 and 421590 i know what the first 5 mean
the reason why im concerned is because i want to do a crown vic ifs but need to make sure the frame lines up

 

does the frame # match the vehicle registration #?

 

421XXX was built in June, 1963. 570XXX was built in August, 1964.

 

1961/64 F100 2WD's have front leaf springs / 1965/66 F100 2WD's have Twin-I-Beam coil spring front suspension.
570XXX (OP: 570088) is a 1964 assembled in July 1964 / July 1964 serial number range: 564,000 - 575,999.