Deciphering a cars history. I hate 'owner two'.

RustyRatRod said

Double and triple check that you have the correct build sheet. Those cars did not come with the 8 1/4 that early.

Click to expand...

I double checked everything again. Broadcast sheets match the fender tag, VIN on the dash and rad support, and title.
It lists the axle as code 566, which all the decode stuff I found listed 566 as seat belts. I did find one post on here where someone said a 566 axle code is a 8 3/4 741 case. My car has a 489 case. End of the day it doesn't really matter, but kind of interesting.