Joint Systems Manufacturing Center (Lima Army Tank Plant) in Lima, Ohio, Abrams tank production rate is 12+ per month. But the allocation of a certain model to Ukraine, is not clear online. The plant produces other models of armored vehicles.
IMHO, Ukraine will not have an opportunity to regain Crimea. And, a position of strength - to negotiate peace - was 1 year ago. Sec.'y Defense Austin was wrong to state that Ukraine had opportunities to recover its land that Ukraine lost to Russia.
“”””Current U.S. 155mm artillery shell monthly production rate (28,000 max) “””””
Those numbers you are using from October of 2023 are expected to be 37,000 by April and 60,000 by October of this year.
Yes, the problem is that Ukraine didn’t get the weaponry at the right timing. And it didn’t get all that was promised either from the West (even though it was budgeted and voted for). Ukraine is still receiving weapons right now from America, based on old previous US weapons aid, passed by Congress.