Did typical straight front axles have steering stops? A RPU project I bought will turn far enough to bind the brake hoses and touch the headlight buckets.
The ford axles have an acorn shaped nut that acts as the stop. It is the nut that holds the king pin "keeper" bolt in the axle ends.
I was wondering the same thing. My 4" dropped axle doesn't hit anything, but I overextended my steering dampener & ruined it. I'm thinking of fabbing some sort of stops to prevent it in the future.
The ones from Speedway are Chrome and are 1 1/2" and are $19.99 for 2 Macs has them in plain steel --they are 1 3/16" and are $2.90 each
You can see how long the nut is that holds the kingpin retainer. The spindle hits the end of that long nut.
Thats pretty tiny. I'd probably take it all apart and weld a nut to the back of the kingpin boss. Then install a stud in the nut and a steering stop acorn nut on that.
I've seen the tube axles with the set screw. I think Blue One has a reasonable solution. Other than that I'd suggest a shapped gusset that could be welded to the axle boss an then trimmed down until the right steering radius is found. Frank