The crew at Hot Rods By Dean...
The crew at Hot Rods By Dean did the time-honored F-1 steering swap in a ’33 Ford. Note how the boxing plate has been cut to accommodate the shape of the steering box’s mount.
From 1928-34 Ford used a side delivery steering box with the drag link connected to the left front wheel. Like most cars of the day, those steering boxes were the worm and sector type. Basically the worm was a very coarse threaded section on the end of the steering shaft and it engaged the sector, which was basically a gear connected to the Pitman arm. Turning the steering wheel was like spinning a screw in a nut, the sector moved up and down the threads and turned the wheels. While this type of steering gear was simple, it was also prone to wear.
When Ford introduced the F-1 pickup in 1948 one of the improvements over its predecessors was the steering gear. Still the side delivery type (as opposed to cross steering used on Ford cars since 1935) the new box was the worm and roller style. The difference is the newer box has a roller that engages the worm gear on the steering shaft. As the name implies the roller spins, which not only reduces friction for easier steering, but service life was lengthened dramatically as well.
As the mounting bolt pattern...
As the mounting bolt pattern on the F-1 box was different from the original, the stock holes in the frame were welded up and new ones drilled. At the same time a tapered spacer was added to the inside of the ’rail so the steering wheel would be positioned properly.
Of course it didn’t take hot rodders long to realize that this new pickup steering was a natural to replace the older-style boxes in early Fords.
While the pickup steering is similar in size and shape to the earlier boxes they are not direct swaps. The mounting bolt pattern is different but the big issue is the angle of the mounting flange on the box. For all practical purposes the pickup framerails are parallel up while those of the cars run at an angle—that means if the truck box is simply bolted in place the steering wheel would be closer to the driver’s door than desirable. There a variety of cures for this, including spacers and modifications to the ’rail in the area the steering mounts. We’ve even seen the pickup steering mounted to a plate above the ’rail, but in our view that defeats the purpose of looking somewhat original.
Although we seldom release Editor Brennan on the unsuspecting public, not long ago he did escape the office and find his way into Hot Rods by Dean where an F-1 box was being installed in a ’33 Ford where he snapped the following photos. They’ll give you an idea of what it takes to put a pickup box in an early Ford.
The steering shaft is solid...
The steering shaft is solid and is part of the box; a plate has been added to the mast jacket to attach it to the floor.
A stock ’33-34-style combination...
A stock ’33-34-style combination ignition switch housing/column mount attaches the mast jacket to the modified ’36 dash. Note the slight angle on the dash mount to make the ignition switch level.
Note that on the F-1 ’48-52...
Note that on the F-1 ’48-52 box the steering shaft is at the bottom of the box below the sector shaft.
By comparison, this is a ’56...
By comparison, this is a ’56 F-100 steering box (typical of 1953-56, the ’56 had a shorter steering shaft due to the dished steering wheel used). Note the steering shaft is at the top of the box, above the sector shaft. Ford pickups used this style of box through 1964.
Although it’s hard to see,...
Although it’s hard to see, the F-1 box is angled slightly toward the center of the car thanks to the spacers welded to the inside of the framerail.
Bumpsteer can be a problem...
Bumpsteer can be a problem with this style of steering. This drawing courtesy of Pete and Jakes shows how to avoid it. A line drawn from the attachment point of the radius rod to the steering arm on the spindle should pass through the draglink’s pivot point on the Pitman arm. Due to the angle of the drag link with this type of steering, it isn’t advisable for use with four-bars.