Front end trouble
 

On my 149, the front axle moves front to rear about 1" or so when you turn the steering wheel back and forth. I see the pivot point for the axle, is a pin held in with a roll pin. I don't see any grease fitting for the front axle pivot. The rear mount on the frame look bent back a little. So do the axle pivot bore wear bad.
Fixing the axle pivot point is not a big deal. I can clamp it to the table on my mill, and bore it for a bushing and add a grease fitting.
Next is the pivot pin, make it like IH made it, or make a custom bolt then one could adjust tension on the front axle. Any guidance would be helpful.

thanks Ken

A lot of people use an Axle Bolt with a Nut. This keeps the "axle channel" from spreading out. Just modify the bolt to make it grease-able.

:IH Trusted Hand:

I use a bolt on all my tractors, I buy an 8" bolt so that shoulder is long enough and then cut it down.

FYi put the bolt in from the front to the back with threads facing the rear. You will more than likely have to grind the bolt head down if you use a regular bolt so that the QA mule will be able to lock into the QA bracket on the tractor. Had to shave almost half of the bolt head off on my 108 to get the mule to go in far enough to engage and lock the mule

I do the opposite, I trim the head down on the chop saw and put it in from the rear.(gigity)

You can get by w/the bolt trick on a 10HP, but not a 12, 14 or 16 as the pan is in the way.
The bolt head will have to be shaved and go in from the back side.

I also have done this bolt trick in the past, and drilled down through the head, then cross drilled through the bolt shaft and tapped a grease fitting centered in the hex head. This allowed for very easy lubrication. I believe there should be a factory grease fitting on the back of the axle, hard to see up in the cast webbing, to grease the pivot pin. It's called out on this pic I copied from the web, I don't have any actual pics of one.

What Dave said!