WC stearing gears ? aftermarket?

I am working on a 1944 WC, changed the front to a good one because the bolts broke off in the old one.
The replacement front had finer tooth gears and an adjustable part that holds the rear bearing and shaft.
All my other WC, WD, and WD45 have larger tooth gears and a nonadjustable part.
This must be an aftermarket, anyone know what?

I don't know what it means exactly,,, but my dad's 37 WC has a "Texas Steering unit" on it. A neighbor,, since deceased looked at it once and said,"that has a Texas unit on it"! When I asked him how he knew, he told me the mounting flange was larger than the usual one that was common! Every other WC that I have had has had the smaller unit on it. Bill told me the "Texas steering" steered easier than the normal factory unit.

After-market. Takes more turns lock-to-lock. That's why it steers easier with a cultivator on the front....more turns.

We had one with Tractor Supply gears. They had a double lead worm gear, the steering wheel would not kick back when you hit a bump with the front wheels. You drive straight across a plowed field without touching the steering wheel. Also when you would turn you would have to turn back straight, they would not self center.

TramwayGuy wrote: Must be something else. A double lead worm would take much more effort than a single lead!

How do you figure? 

"How do you figure? "

It's all about the math.   For the same number of teeth on the ring gear, a 2-lead worm is half the ratio of a single lead. For example, if I have 20 teeth on the ring, a single lead worm gives a ratio of 20/1= 20:1. For a double lead worm, the ratio is 20/2 or 10:1. So there has to be something else going on. More (and finer) teeth on the ring gear with the appropriate matching worm is my guess. Either way, both would have been changed.

Funny thing this should come up now.  I just wrote an article on the after market WC easy steer.  There were a couple of them out there.  Tractor Supply sold a single lead worm to double the turns lock to lock.  Factory was 3 1/4 turns. Changing from the factory double lead worm to the single lead gave you 6 1/2 turns on the steering wheel.  I have one like Richard's pictures, it required changing the worm , worm gear, and the bearings to accommodate the eccentric mounted rear bearing which allowed you to adjust the depth the worm rode in the worm gear.  The latter was a double lead too, but also gave 6 1/2 turns lock to lock, perhaps the finer teeth made it even easier to steer than just the coarser single lead worm that Tractor Supply sold.  The spring Upper Midwest A-C Club newsletter should have the article with some pictures.