Sherman Tank Myths - The Sherman Could Not Be Armed With a 90-mm GunThe M-36 tank destroyer (mounting a 90-mm gun) was a modified M-10 tank destroyer which was based on the M-4 tank chassis. So much so that when the Army ran out of readily available M-10 chassis to mount the M-36 turret on they used M-4 Sherman chassis!So, anyone claiming the Sherman could not use a 90-mm is an idiot. Some were in fact armed with a 90-mm in a round about way.Tests were done fitting the M-26 turret on the Sherman and during the 1960s and 1970s the Israelis put 105-mm guns on some Shermans.The British predicted the increase in armor in German tanks and hence began a program of upgrading the Shermans they got Lend Lease with their 17-pounder gun. None of the guns used in the war were perfect - but the 17-pounder was one of the best and better than any cannon the USA was using excepting the 90-mm. The British used common Shermans for this conversion - the version originally armed with the 75-mm gun and hence the version with a smaller turret. The 17-pounder was not much bigger than the USA's 90-mm and yet they squeezed it into said tanks.Hence the 90-mm might very well have been fit to Sherman tanks, especially those with the larger T-23 turret used for the 76-mm.The Sherman was a decent combat vehicle and could use just about any weapon put on it.