[Mr Radical]

While the USSR would have been hard-pushed without Lend-Lease, the T34 pre-dated it (the T34 was a development of a Walter Christie’s earlier designs).
The JS-3 came as a surprise to the Western Allies just as much as the T34 was a surprise to the Nazis.

[PIF]

the T34 pre-dated it

—
But not in the quantity made possible by lend lease.