According to »US War Department, Quantities of Lend-Lease Shipments«, a total of 1,243 5-ton 4x2 Dump trucks were delivered to the USSR in WW2.
Most, if not all of them were KR-11 built from 1941-1943 by the notorious Lend-Lease supplier International.
The chassis had an 161in. wheelbase and 10.00-20.00 tyres and was also used as a truck tractor for towing semitrailers.
Like with other US types, the truck seemed to have been quite a success in the USSR, as the post-war Russian ZIS-150 truck was an almost exact copy.