Early 1967 Steering Column Help Needed - NCRS Discussion Boards

Early 1967 Steering Column Help Needed

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  • Nick L.
    Expired
    • May 31, 1998
    • 82

    Early 1967 Steering Column Help Needed

    As usual, nothing can ever go smoothly. I should know that by now but for some reason it continues to surprise me.

    I took the column out of my early 67 big block to have the steering box rebuilt due to a prior disastrous rebuild that obliterated the internals of the box.

    At the same time, I need to replace the lower bearing in the column as it was completely shot. There were no balls left in it and the races were just along for the ride. I've read all the papers and resources I could find on the early column, and ordered a reproduction early bearing from Paragon which arrived today. I cleaned all the paint and mess off the shaft and had no difficulty removing the retainer, flange, spring, and bearing.

    Now I see the plastic pins that stake the upper and lower column shafts together must be broken, because the lower shaft telescopes within the upper by at least an inch. I do not want to disassemble the entire column if not necessary. The first question is, may I replace the bearing and use as it is with no saftey or performance detriment provided I reinstall correctly in the car?

    Second problem is that the new repro bearing will not slide freely on the shaft all the way up to the outer sleeve where it must seat. As I see it, the inner race of the bearing has to be a slip fit all the way. I get about half way between the splines and the retainer groove before it gets too snug to slide. I tried it with the O-ring out of the inner race and same problem. I do not have any mics or even a caliper to measure the parts with, but will do so tomm at work. The shaft is clean to bare metal with no burrs or marks that would cause the bind. What to do on this???

    Third question is, does anyone restore these columns? At this point I'm getting agitated and would probably prefer to write a check rather than continue messing with it.

    Thanks for reading, sorry this is so darn long.

    Nick
  • Nick L.
    Expired
    • May 31, 1998
    • 82

    #2
    Re: Early 1967 Steering Column Help Needed

    OK...The OD of the bearing that should be an interference fit to the mast is machined with a 0.010" taper, with the big end going in first (1.455"). There is no lead-in or chamfer to help, either. Just a sharp corner. Even if I could get this over the shaft all the way to the mast, there is no way I could get it seated.
    The ID is OOR 0.003", measuring 1.007"-1.010". What is the spec for the OD of the lower steering shaft? Mine measures 1.009" at it's largest... There is no way the bearing can slide over the shaft as it is.




    Comment

    • Jim S.
      Expired
      • August 31, 2001
      • 730

      #3
      Re: Early 1967 Steering Column Help Needed

      You didn't mention if you had a standard (non-adjustable) column or a telescoping one. Since the telescoping type was quite rare in 1967 I assume that you had the standard type.
      I was not able to obtain the original (early) 1967 steering column drawings from Saginaw. Those columns were campaigned to install new steering shafts and eliminate the original shafts with a snap ring groove in the steering shaft to retain the lower bearing.

      You didn't mention anything about a snap ring (which would indicate an original steering shaft that never was campaigned and replaced) or a clamp with a nut and bolt (which would indicate a campaigned early column.)

      The best that I can offer are the following links to two papers that I authored about the 1967 and 1968 Corvette standard steering columns.




      These papers and the telescoping column papers can be found at www.corvettefaq.com
      Click on Jim Shea's Steering Papers
      Click on Corvette Steering Papers
      Scroll down to the 1967-68 Steering Column Sections
      Download as required.

      Jim

      Comment

      • Nick L.
        Expired
        • May 31, 1998
        • 82

        #4
        Re: Early 1967 Steering Column Help Needed

        Jim,

        Thanks so much for the help. I had read both your papers in detail before I even began to remove the column, and they were of great assistance to me.

        I was able to successfully get it reassembled today with some minor mods to the bearing. This is an early column (non-tele) that had not been updated. It has the snap retainer, washer, collar, spring, then bearing. I have it reassembled and cleaned up nicely now. I will photograph the finished product and post the pictures here on Tuesday when I return to the office.

        Comment

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