I have seen both brazing and arc welding since the 50s, not a very pretty mod at all. Many Jeeps did not receive the mod, as organizational maintenance shops did not always have welders back then. It would be brought up to date when the Jeep happened to go to a support unit, maybe just for a paint job, or higher echelon repairs. The Completion of the MWO would be entered in the DA-478. The DA-478 followed the Jeep for its operational life, and was destroyed when the Jeep was finally scrapped or disposed of by the DRMO. The History of your Jeep is gone forever the day it is transferred from the US Gov't.
PROUD 2011 MVPA PIONEER AWARDEE-HONOR GRAD WHEELED VEHICLE MECHANIC SCHOOL 1960- US ARMY ORDNANCE SCHOOL(MACHINIST) APG 1962 - O-1 BIRD DOG CREWCHIEF - 68 NONSTOP BY THE BOOK ARMY TRUCK-JEEP YEARS LIFETIME AM LEGION DAV 40/8- MVPA 1064 -7 TURNKEY MV'S