Help! Can intermediate shaft length be adjusted? - Page 2 - Chevelle Tech
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post #16 of 24 (permalink) Old Dec 5th, 18, 6:19 PM
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Hank
 
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Re: Help! Can intermediate shaft length be adjusted?

I thought the Intermediate Shafts that Ground Up sells were brand new repro units but they are remanufactured units so I think these guys are right somehow a BB Monte Carlo shaft must have got mixed in. I would call Ground Up and tell them it's too long and have them send you another one.

71 Malibu, Cottonwood Green, 396 BBC, AutoGear M22W 4 speed, 12 bolt 3:55 posi.
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post #17 of 24 (permalink) Old Dec 6th, 18, 3:07 AM
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Re: Help! Can intermediate shaft length be adjusted?

Quote:
Originally Posted by HKalin View Post
Another thing if you shear off those pins and move it down you will probably have to drill new holes in the inside shaft so the plastic can go all the way through. I would measure the length of it and call call Ground-Up and tell them it's too long and have them measure another one they have in stock. It wouldn't be the first time something got through screwed up.
there are no pins. What there is, is a small channel across one flat of the inner shaft that has plastic injected into it through those small holes.
Looks like this photo I fount in the interweb:
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post #18 of 24 (permalink) Old Dec 6th, 18, 9:23 AM
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Re: Help! Can intermediate shaft length be adjusted?

Quote:
Originally Posted by kermitsass View Post
there are no pins. What there is, is a small channel across one flat of the inner shaft that has plastic injected into it through those small holes.
Looks like this photo I found in the interweb:
Thanks for posting that. Now we all have a better understanding how they are put together in that section of the shaft.

71 Malibu, Cottonwood Green, 396 BBC, AutoGear M22W 4 speed, 12 bolt 3:55 posi.
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post #19 of 24 (permalink) Old Dec 6th, 18, 10:59 AM
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Re: Help! Can intermediate shaft length be adjusted?

Quote:
Originally Posted by HKalin View Post
Another thing if you shear off those pins and move it down you will probably have to drill new holes in the inside shaft so the plastic can go all the way through. I would measure the length of it and call call Ground-Up and tell them it's too long and have them measure another one they have in stock. It wouldn't be the first time something got through screwed up.
Itís not a plastic pin and it does not go all the way through. I have had these sort many times. All that external hole is for is a point to inject molten plastic into the shaft so it stays in the place itís suppose to.

Tom Rightler, MCC VP & Newsletter Editor

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post #20 of 24 (permalink) Old Dec 6th, 18, 2:09 PM
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Re: Help! Can intermediate shaft length be adjusted?

I guess we need to use quotation marks when talking about the "pins"
It really doesn't matter, it doesn't change anything when talking about collapsing the shaft.
Using "pins" just makes it easier to comprehend the theory.

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Last edited by Dean; Jun 17th, 19 at 3:42 PM.
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post #21 of 24 (permalink) Old Dec 6th, 18, 2:44 PM Thread Starter
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Re: Help! Can intermediate shaft length be adjusted?

so it ended up going in without a hitch (after shortening it) and a little epoxy is going in the holes. New gearbox, too
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post #22 of 24 (permalink) Old Dec 6th, 18, 6:15 PM
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Re: Help! Can intermediate shaft length be adjusted?


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post #23 of 24 (permalink) Old Dec 23rd, 18, 2:53 PM
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Re: Help! Can intermediate shaft length be adjusted?

Quote:
Originally Posted by Andy's Auto Repair View Post
Huge problem. The shaft you have is for a big block first gen Monte Carlo.
Digging up old crap on the eve of Christmas Eve. Playing with my hoard this morning. Came across the steering shaft I crept out of my 70 L78 race car before I sold it and the shaft I took out of a 71 402 Monte Carlo.

See the difference? I also have a reman steering shaft I bought from NPD that matches the one out of the Chevelle. (not pictured)
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post #24 of 24 (permalink) Old Dec 23rd, 18, 4:57 PM
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Re: Help! Can intermediate shaft length be adjusted?

Quote:
Originally Posted by Dean View Post
The injected plastic would have nothing to do with making it easier to assemble unless they injected the plastic after they installed it.
It would make it easier to install by having the shafts length fixed in a set position that installs in the car or frame easier as it travels the assembly line.Not having to adjust the shaft bigger or smaller to put it in would make it easier to install when its was on the assembly line ....JMO here

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