Truck block casting 3701946 is listed 1953 only, and with crank forging 3701894.
That was the first and last year for that crank, and the last year with babbitted rods.
In 1953, Passenger also used the same numbers, with Std. Trans, Mec. Cam.
Then, the 235 as well as the 261, are all listed with crank 3701488.
235 passenger first in 1953, using three different blocks. Trucks, 235 and 261 first listed in 1954.
Crank 3701488, listed as 1953-55 with "Dowel Type Mains" and also 1955-63 "Lip Type Mains.
