Factory Frame Markings

[House]

From previous posts we have seen quite a few different factory markings and numbers on the core support,
bell housing, transfer case and axles, but I couldn't find any reference to markings on the frame...
I have seen a few examples over the years, usually few and far between.
Seen on both late 60's and mid 70's rigs, so not an early or late thing.
A lot of factors would need to be right in the rigs life for them to survive...
There seems to be a few spots on the frame that have been circled.
Was it for inspection, lining up a jig, or something else?
Who else still has them? Love to see more.
Any factory guys know what they were used for?

 

[Joe473]

From previous posts we have seen quite a few different factory markings and numbers on the core support,
bell housing, transfer case and axles, but I couldn't find any reference to markings on the frame...
I have seen a few examples over the years, usually few and far between.
Seen on both late 60's and mid 70's rigs, so not an early or late thing.
A lot of factors would need to be right in the rigs life for them to survive...
There seems to be a few spots on the frame that have been circled.
Was it for inspection, lining up a jig, or something else?
Who else still has them? Love to see more.
Any factory guys know what they were used for?

This was original stickers and markings on disassembly. Mine still had original timing chain and ford stamped 3 finger clutch. Wish I took picks of clutch assembly.

Sent from my SM-G900V using Tapatalk

 

[BajaBronco]

"o" those markings. ..

Very cool find. I"ve seen very few with them, but have seen them. Anyone got any ideas?

I like all those other known marks too.