The Stovebolt Site Forums The Shop Area Driveline 3100 Steering Knuckle Bore Diameter

Bill,

This is what I meant to link-to:
http://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm0316.htm

However, I do not think that is what you want?
I think you want to know the kingpin bushings' inner AND outer diameter (for fitting the bushing into a knuckle)?
"3100 Steering Knuckle Bore Diameter"

That diameter did not change over many years.
I cannot find the measurement for the outer diameter of the bushing, but, it did not change for many years, as shown in the 1957 Master Parts Catalog, that I linked-to, above.
6.021 - the bushings

Nonetheless, what do you want to know: do you want to know what year steering knuckles will work on your truck?
A link in one of my posts above, shows the 1950 and later steering knuckle is different from the earlier steering knuckle - due, I think, to the change in the brakes.
6.020 - the knuckles - go to the next page, for the years you are interested in
1951-1957 are the same
1946-1950 are the same