|The worm and roller type gear was used from 1937 to 1948. Ford used the Gemmer model 305 in Fords from '37 to '40 and in Mercurys from '39 to '42. From 1941 to '48 (Ford) and from 1946 to '48 (Mercury) Ford used their own manufactured version which was similar to the Gemmer 305 gearset. Some minor differences in parts occurred over the years|
Worm and Roller Type Steering Gear
Worm Shaft End Play
Check by turning steering wheel one turn to right, secure wheel, shake front wheels (drag link must be disconnected). Check movement of steering wheel hub on column jacket. If endplay is perceptible make adjustments.
The end play in the steering column shaft is controlled by shims and the body (Figure A). To take up worm shaft end play, loosen the 4 housing cover screws about 1/8" and remove top shim. The housing cover should not be removed completely because there is danger of the bearings falling out of place. The shims can be pulled out one at a time after the housing cover screws have been loosened enough to drop the cover 1/8". Tighten cover screws and check adjustment. The shaft should be free to turn with no perceptible drag yet have no end movement.
Cross Shaft End Play
Check by turning steering wheel to center position (turn wheel back 1/2 the total number of turns from either end-stop or place marked spoke straight up or straight down). Shake the steering wheel at ball end. If play or backlash exceeds1/32", adjust the cross shaft (roller shaft) position as follows:
To adjust cross shaft
Read steering gearbox adjusting comments by Brian Falkner of New Zealand, an early V8 enthusiast with experience doing this job. Click here for his notes.
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