1960-63 Chevrolet truck GM #3845157 3-speed manual transmission, 16 spline model for a 235.5 cubic inch, 6-cylinder engine. NOS & Never installed from an old GM dealer service department complete with #3765708 bellhousing, clutch fork & shifter rods for $2000.
Also have 1948-53 GM bellhousing #3701433 for Chevrolet or GMC pickups with 6 Cylinder & 3 speed manual trans includes clutch fork & shifter rods for $600.