Iceman4,
Welcome to the Stovebolt

Your serial number breaks down as follows;
9 = Norwood, OH assembly plant
T = 1950
W = 6400 w/ 161" wheel base
S = Special (1-1/2 ton rated at 15000 gvw)
L = December
1145 = Unit number starting with 1001, so you have the 145th TWS out of plant #9.
Most mechanical parts can be found at NAPA, cab interior parts should be the same as the pickups...others will chime in to tell you about sheet metal differences.
Mike B
