[sportfan]

I'm going back together with my front axle on my 1972 Ser. III 88". The factory manual says the top swivel pin should be a light tap fit into the Railko bushing. I'm reusing my old bushing and it takes more than a tap to get the pin in. I miked the pin o.d. and two new Railko bushing i.d. . The pin is .003" to .004" bigger than the bores of the new bushings. I've rebuilt 3 or 4 of these and never ran into this before. This tight of a fit would make it hard to figure out how to shim the pin to set the preload on the lower roller bearing. The only thing I know to do is set the pin up on the lathe in a four-jaw chuck and polish it down for a .000" to .001" clearance fit. Anyone ever run into this before?

 

[jimrr]

That's a tuff one but if you have a decent machine taking .004 off shouldn't be much of a issue. I'd have to look at the book but a interference fit for that size bush is pretty tight.