Loadflite identification

[thisoldhippy]

So I bought a used loadflite for 50$ He told me it was out of a 440 powered motorhome. Trying to determine if it is Only #'s I can find are 555-10 cast into case. Then down on the drivers side right above pan is PK4039534 (vin#?) then 6073 10,00 day calender number then 2566 (?) last Measured the bolt holes at the top of bellhousing at 6 1/2 with a tape measure HpBooks says that is the measurement for a big block! Any help would be great! Thanks!

[DaveVA78Chieftain]

From 1978/79 Parts book:

4039534:
1978 w/440. Used on:
M300: 137" WB
M400: 137" - 159" WB
M500: 159" - 178" WB
M600: 208" WB

6073 Date Code = 14 Mar 1978

[thisoldhippy]

Thank you Dave! Just didn't want to rebuild it and find out it would not bolt in!