What year/spec 727?

altraditional said

Where can I find out what the numbers on transmission tell me? Is there a web page about these? Or anyone with a book of info?

Numbers cast on top of trans: 844-4
punched on rear left side: 3410 844-4
On pan rail, left side: PK3410767 (maybe PK34107671) 2996 5055
On passenger side OA156366

Thanks.

Click to expand...

On pan rail, left side: PK3410767 2996 5055
PK is the factory of assembly PK = Kokomo assy plant
Part number 3410767 = 1970 318 HD 727
2996 - 10,000 date code of assembly = Friday, October 10, 1969
5055 = number of transmission assembled that day till yours.

OA156366 this is the actual cars info from which it was taken from
O = model year 1970
A = cars factory of build = Lynch road plant
156366 last 6 of cars vin and/or the 56,365th car built at that factory that year.