[Suhiir]

Basileus,

The USMC was equipped exclusively with M4A3(105) Shermans prior to Korea. However, they had enough M26 Pershings in storage to reequip the most of the 1st MarDiv with them prior to sending it to Korea.

My info has the 1st MarDiv replacing it's M26 Pershings with M46 Pattons mid 1952. And by March 1955 they'd been replaced my M48A1's.

I had indications the M47 was available as early as October 1951, but that info may be inaccurate.

Good info on the conversion of the M48A1's to M48A3's. I knew some weren't converted but I think all but 3 out of 421 is close enough drop the M48A1 by 1964.

My info is the USMC got M67A1 Zippo in 1957 and those were upgraded to M67A2 in 1965.

The USMC gets a lot of its armor 2nd hand from the US Army. So it's not so much a shortfall in the production of M48A1's but having to wait till the US Army replaced theirs.

"The ENSURE 202 mine rollers for M48A3s weren't deployed until late in the Vietnam War; photo evidence is dated 1970, and only 27 sets were deployed.
The earlier Larruping Lou, ERDL I/II and Birmingham rollers were experimental and never fielded."

I'm assuming from what you say there were no mine roller M48A1's at all?