bob ward
12-12-2005, 07:32 AM
One of lifes minor mysteries.
From an era when car components tended to be dimensioned to the 1/16", a stepdown king-pin has a diameter of .940". Not .9375" for 15/16" or maybe .953125" for 31/64", but .940". And while stepdowns do contain a few metric components, this is not one of them .940" = 23.876mm
Any theories as to how this slightly odd for the time dimension would have been arrived at? Is it likely to be something to do with the king-pin hardening process?
The OD of the king-pin bushes reverts to typical practise, 1.375" top and 1.125" bottom.
From an era when car components tended to be dimensioned to the 1/16", a stepdown king-pin has a diameter of .940". Not .9375" for 15/16" or maybe .953125" for 31/64", but .940". And while stepdowns do contain a few metric components, this is not one of them .940" = 23.876mm
Any theories as to how this slightly odd for the time dimension would have been arrived at? Is it likely to be something to do with the king-pin hardening process?
The OD of the king-pin bushes reverts to typical practise, 1.375" top and 1.125" bottom.