Worm. Your picture shows a 4-bolt connection on the lower end, but my steering box '51 3100 3 on the tree, has those 4 bolts on the upper end, disconnecting the column.
Your pic is the steering gear for the 3/4 and 1 ton Forward Control, 1-1/2 ton school bus and all 2-ton trucks, per the service manual exploded diagrams.
Last edited by klhansen; 12/22/2021 9:33 PM. Reason: added more stuff
