Italian 90mm AA gun is produced in large numbers

[tigercat]

What difference would a relatively small change like the Italians fielding and using their 90mm AA and anti tank gun like the Germans used the 88mm make to to WW2 including on self propelled artillery

from wikipedia:

Though often overshadowed by the more famous German 8.8 cm Flak 36, the Cannone da 90/53 was undoubtedly one of the finest anti-aircraft and anti-tank guns of World War II, possessing several advantages over its German counterpart.

The 90/53 used a single-piece barrel instead if the two-piece barrel of the 8.8cm, simplifying production.
The 90/53 fired a larger shell: 90mm 10.33kg compared to 88mm 9.2kg of the Flak 36 8.8cm.
The 90/53 had a higher muzzle velocity of 840 m/s, compared to 790 m/s.
The 90/53 had a longer range of 12,000 m against 10600 m, though the Flak 36 was rarely effective above 7,900 m.
Though the 90/53 lacked the sophisticated fire control systems of the later 8.8cm models, in use these systems proved troublesome and unreliable, while the less sophisticated fire control system of the 90/53 was found to be highly reliable, though not as accurate

[Pablo1965]

I love this AA gun, but his balistic adventage are limited by his poor aim mechanism. His adventage in the fight with tanks are incredible.
The italian haven't a good  tank to use this gun, by other hand the german can put the 88 in many of his tanks.
Perhaps a mixed of tecnologies between the Balistic of the 90 and the precision of the 88 would be the best gun.

[dy031101]

Wasn't the successor of Carro Armato P40 to have carried a 90mm gun?  One revieted-hull tank with impressive firepower.

[rickshaw]

The Italian's biggest problem was lack of heavy industrial capacity.  In North Africa, they actually fielded several regiments of German 88mm guns because of their inability to supply their own 90mm.  They were pivotal at the Battle of Gazala at one point.

[tigercat]

They would presumably have had a significant impact on the war in the desert if they had had the numbers.

[rickshaw]

They would presumably have had a significant impact on the war in the desert if they had had the numbers.

Not really.  The 88mm FlaK didn't and the Germans did have the numbers.   Armies have to be balanced and you can't really have one gun do all jobs nor employ it everywhere.   The Italians needed a whole raft of other things if they were to dominate the British in North Africa and better guns were just one of them.

[tigercat]

I guess they would have if you were a Matilda crew .