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Tilt/tele column

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Old Dec 19, 2007 | 10:11 PM
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Default Tilt/tele column

I have dissembled the column and replaced the lock assy. Replacing the retainer for the tele, which compresses the upper spring, The bottom shaft of the column slide into the housing. What retains the shaft to prevent this from happening or did I break something when compressing the upper spring to install the retainer? I had the column standing on the lower shaft while compressing the spring
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Old Dec 20, 2007 | 12:05 AM
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The lower shaft was designed to collapse on a frontal crash. The two shafts had a plastic slug that hold the two shafts in position. On impact the plastic would break and the lower shaft would collapse into the upper. It is not easy to get it back where it is supposed to be.
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Old Dec 20, 2007 | 03:48 AM
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I dunno about hard to get it back down...all I did was grab the end with vice grips and tap it back down again......simple, really.....if it's to far down there you can't get the grips on it, you maybe able to just drop the column on the flange and jarr it down...or maybe you can hook it down with the hook end of a fish tape...

barring all that, take it apart down to the nylon ball segments, and tap it down from above.....PIA....

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Old Dec 20, 2007 | 09:19 AM
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Both of the above comments are correct. The steering shaft is constructed in two pieces and they are held in position by plastic. The hollow lower shaft is designed to telescope into the column in a severe frontal collision. For some reason the plastic shears and the lower shaft telescopes into the steering column a lot easier than it comes back out to its original length.

You didn't mention what year Corvette that you own. Here are the lengths of steering shaft that should be sticking out from the lower bearing:
1969 through 1976 4.70 inches from bearing face to end of shaft
1977 and 1978 4.90 inches from bearing face .....
1979 through 1982 5.00 inches from bearing face .....

BTW it is perfectly safe to operate your car after the plastic has been sheared and the steering shafts returned to their original positions and length.

Jim
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Old Dec 20, 2007 | 11:23 AM
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Originally Posted by Jim Shea
Both of the above comments are correct. The steering shaft is constructed in two pieces and they are held in position by plastic. The hollow lower shaft is designed to telescope into the column in a severe frontal collision. For some reason the plastic shears and the lower shaft telescopes into the steering column a lot easier than it comes back out to its original length.

You didn't mention what year Corvette that you own. Here are the lengths of steering shaft that should be sticking out from the lower bearing:
1969 through 1976 4.70 inches from bearing face to end of shaft
1977 and 1978 4.90 inches from bearing face .....
1979 through 1982 5.00 inches from bearing face .....

BTW it is perfectly safe to operate your car after the plastic has been sheared and the steering shafts returned to their original positions and length.

Jim
Yeh, Jim, I gotta compliment that design, that double D shaft within a shaft was well done, mine been in there 'loose' for some 12 years now, and never a hint of troubles....works like a charm.....
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Old Dec 20, 2007 | 02:13 PM
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Thanks to you and all the other responders for the information. It puts my mind at ease to know it's not a majot malfunction. Forgot to mewntion it's a 1980.
Happy Holidays to all...classicvettefan
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