Big deal. During WWII, the US produced only 86,000 tanks. But the US also produced 300,000 aircraft (some of which we gave to Russia under lend/lease), more than 6700 major naval vessels (aircraft carriers down to destroyers), and 23,000 landing craft. My father was too old for the draft but, in addition to his regular job, he was also obliged to work at a giant defense plant just north of Cincinnati which made Wright Allison engines for B-17s. I was only a youngster then, but when I'd accompany my mother out to the Wright plant to pick him up after his shift, I recall seeing endless rows of wooden crates housing the big 18-cylinder radial engines awaiting shipment to the assembly plants that made the planes.
Further, we weren't just loading our production of tanks and other materiel onto rail cars and hustling it off to a war zone on our own borders (I'm thankful for that). We were delivering it across the Atlantic and Pacific Oceans to multiple theaters of war in far-flung (for us) corners of the globe.
Not only did we supply the Soviets with war materiel, but we also supplied them with many of the machine tools they needed to make theirs. I've seen many pictures in history books of workers in wartime Russia playing their trades on machines which were clearly identified as being manufactured in Cincinnati by R.K. LeBlond and Cincinnati Milling.