School Me on Early Ford Spindles

Ok What is up with the king pin size on these early type spindles. I have a set here that fit backing plates but the king pin is bigger than my other spindles. WHY?

 

Lincoln----- Fords are all the same, Lincolns are bigger

 

Might make trailer axle parts. You can weld on arms from spindles with badly worn bearing areas. How are the bearing areas? Worn?? If worn=junk

 

Damn, Andy and Neal know their shit.

 

check the stampings; 48 mark is 1935; 68 mark is 1936
Yes, the 35 is longer. 1936 measures 5 and 3/4"; 1935 measures 6".

 

Can someone clarify this for me. I've got some with the big square back, which are 42-48. The round backs are 37-41. The ones on the right with the small square backs are? I know someone with some of these and we thought someone had cut down some 42-48's.

 

Small pattern is 28 thru 36. Thats a cross steer spindle which started in 35. So measure the snout or look for the numbers.

 

So any confirmation on year spindles with bolt in steering arms. I have these on a front 1937 axle, but spindles are like nothing I've seen before. Front drums brakes with grease seal that matches mid 60's Econoline application.

https://st.hotrod.com/uploads/sites...-ford-spindles-1928-1937-model-a-spindles.jpg

 

In the last pic I had to remove the steering arm and flipped it loosely in front of mounting hole.