The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 05-30-2019, 11:13 PM   #1
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Closing the gap between steering wheel and column

I reassembled & reinstalled the steering column in my Ď68 C10 and this is what I got (see pic). How do I close this gap?

Iím still using the one-piece steering shaft. The only thing Iíve intentionally done different was to replace the steering gear & rag joint with ones from a Ď76 C10 (for the ratio). Everything else I believe I put together as it was before. So is the new gear & rag joint just that much longer, or do I have some other installation issue?
Attached Images
 
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Old 05-31-2019, 03:27 PM   #2
cj847
Registered User
 
Join Date: Sep 2016
Location: Ft Smith, AR
Posts: 32
Re: Closing the gap between steering wheel and column

Not sure if it is the same, but On my 66 I pushed the column up on the shaft and then tightened the "bicycle seat clamp".
Attached Images
 
cj847 is offline   Reply With Quote
Old 05-31-2019, 06:16 PM   #3
Steeveedee
Senior Member
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 3,475
Re: Closing the gap between steering wheel and column

Let us see a shot of the mounting at the rag joint. Are you sure that there isn't more room to bring the shaft closer to the steering gear?
__________________
'70 Chevy 3/4T Longhorn CST 400/400/3.54 Custom Camper

"Orange Acres"
Steeveedee is offline   Reply With Quote
Old 05-31-2019, 07:05 PM   #4
70shortfleet
Senior Member
 
70shortfleet's Avatar
 
Join Date: Apr 2010
Location: St.Peters, MO
Posts: 1,913
Re: Closing the gap between steering wheel and column

Need some pictures in the engine compartment of where it mounts to the firewall and of the rag joint.

cj847, I think you need to rework your steering shaft, that doesn't even look right! it looks unsafe to me but I could be wrong
70shortfleet is offline   Reply With Quote
Old 05-31-2019, 07:16 PM   #5
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Re: Closing the gap between steering wheel and column

Here are some more pics. I don't see any length to take up at the rag joint. It's already pushed down onto the steering gear as far as it can go. The column housing is already as far up as it can go, stopped by the nub on the brake pedal hanger bracket that fits into the slot on top of the column tube.
Attached Images
  
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Old 05-31-2019, 11:31 PM   #6
Steeveedee
Senior Member
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 3,475
Re: Closing the gap between steering wheel and column

Maybe all that's left is the new box is just longer? Do you have the old one to compare it with? Maybe you can slide the mast jacket up, if there is enough room for the bolts to move. Or would that make it too close to you? It wouldn't change where the steering wheel is now, necessarily. I've never done this, so maybe I'm talking out my butt.
__________________
'70 Chevy 3/4T Longhorn CST 400/400/3.54 Custom Camper

"Orange Acres"
Steeveedee is offline   Reply With Quote
Old 06-01-2019, 12:13 AM   #7
70shortfleet
Senior Member
 
70shortfleet's Avatar
 
Join Date: Apr 2010
Location: St.Peters, MO
Posts: 1,913
Re: Closing the gap between steering wheel and column

You could loosen the firewall bracket clamp, drop the column down inside grind the nub off then move the column towards the steering wheel to take up the gap and then make sure the column is vertical and tighten all bolts and then move the spring up to the column in the engine compartment. I think this would work and hope this makes sense to you.
70shortfleet is offline   Reply With Quote
Old 06-01-2019, 06:28 AM   #8
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Re: Closing the gap between steering wheel and column

I donít have the old gear to compare, unfortunately. I could do away with the brake hanger nub and move the housing up to meet the wheel, but then Iíd run into the two nubs on the housing that engage the firewall bracket. There is some room before I run into those, maybe it will be enough. From what Iíve seen, Iíll need to get the wheel snug against the column because thatís what keeps the upper bearing in place. I canít just tolerate looking at a bigger gap because that will give the bearing too much freedom and my horn might not contact.

Still interested in thoughts on whether I should move the housing up or maybe go through the trouble of shortening the shaft?
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Old 06-01-2019, 09:45 AM   #9
70shortfleet
Senior Member
 
70shortfleet's Avatar
 
Join Date: Apr 2010
Location: St.Peters, MO
Posts: 1,913
Re: Closing the gap between steering wheel and column

One other option is to get rid of the 68 main column shaft and get a 69-72 shaft with an intermediate shaft between the column and the steering box.
70shortfleet is offline   Reply With Quote
Old 06-01-2019, 12:53 PM   #10
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Re: Closing the gap between steering wheel and column

Wouldnít a 69-72 shaft w/ joint be the same length? I didnít think those were adjustable...at least not any more adjustable than the straight ones. They both have the collapsible joint near the bottom of the shaft, right?
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Old 06-01-2019, 03:35 PM   #11
70shortfleet
Senior Member
 
70shortfleet's Avatar
 
Join Date: Apr 2010
Location: St.Peters, MO
Posts: 1,913
Re: Closing the gap between steering wheel and column

It seems like all of your problems are coming from your steering box being longer than the stock box. If you could figure out a way to collapse your main steering shaft about a half inch that might work also. I can collapse 69-72 intermediate shafts in my press but that shaft is way too long!
70shortfleet is offline   Reply With Quote
Old 06-01-2019, 04:14 PM   #12
cj847
Registered User
 
Join Date: Sep 2016
Location: Ft Smith, AR
Posts: 32
Re: Closing the gap between steering wheel and column

Quote:
Originally Posted by 70shortfleet View Post
Need some pictures in the engine compartment of where it mounts to the firewall and of the rag joint.

cj847, I think you need to rework your steering shaft, that doesn't even look right! it looks unsafe to me but I could be wrong
That is why i commented. I rebuilt my column. The clamp and spring in the second picture in three quarter's post set the bearing preload of the upper and lower bearing. I think he needs to loosen everything above that point and push that up to close the gap. (I bet his steering wheel feels "floppy" as the upper bearing has no load).

The steering column needs to be pushed up to meet the steering wheel, before you tighten the bolts that hold it ti the dash. If there is an issue with over all length, then the holes won't line up inside the cab.

I assembled the column with the wheel on it before installing and set the clamp. But I don't see why you couldn't do it on the truck as long as everything is loose.

Last edited by cj847; 06-01-2019 at 05:36 PM.
cj847 is offline   Reply With Quote
Old 06-01-2019, 06:28 PM   #13
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Re: Closing the gap between steering wheel and column

Thanks for the tips. I have loosened everything (strap under dash, clamp at firewall, spring/clamp below lower bearing) and tried pushing the column housing up to meet the wheel. It moves up and down, but thereís a nub in a slot that stops me from going as far as I want to. And yes, my upper bearing has too much freedom.

How much pressure does it take to compress the.sliding joint on the shaft? I think I only need 3/8Ē.
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Old 06-12-2019, 09:37 PM   #14
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Re: Closing the gap between steering wheel and column

I guess my other option is to replace my Ď76 gear and rag joint with a Ď68 gear thatís been built with the quick ratio. I thought I had a clever way to avoid spending the money on one of those, but it sounds like Iím not as clever as I thought.
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Old 06-12-2019, 10:12 PM   #15
Steeveedee
Senior Member
 
Steeveedee's Avatar
 
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 3,475
Re: Closing the gap between steering wheel and column

Bummer! And a lot of work, too.
__________________
'70 Chevy 3/4T Longhorn CST 400/400/3.54 Custom Camper

"Orange Acres"
Steeveedee is offline   Reply With Quote
Old 08-17-2019, 11:33 PM   #16
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Re: Closing the gap between steering wheel and column

There, thatís better! Steering wheel and upper bearing are nice and tight.

Finally got around to fixing this. Chose to drill/heat out the plastic pins in the lower shaft and telescope it down by 1/2Ē. Glad I did because I also made a few other tweaks during the install to fix some things that werenít completely right before. Fourth timeís a charm!
Attached Images
 
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Old 08-18-2019, 10:13 PM   #17
dmjlambert
Senior Member
 
dmjlambert's Avatar
 
Join Date: Apr 2016
Location: Cypress, TX
Posts: 1,457
Re: Closing the gap between steering wheel and column

Did you take any pictures of the part where you drill/heat out the plastic pins in the lower shaft and telescope it down? It would be neat to seem some pictures of that process.
dmjlambert is offline   Reply With Quote
Old 08-18-2019, 10:43 PM   #18
ThreeQuarter
Senior Member
 
ThreeQuarter's Avatar
 
Join Date: Jun 2000
Location: Texan in Iowa
Posts: 2,138
Re: Closing the gap between steering wheel and column

Yeah, that would have been a really good idea. Unfortunately I got caught up in doing it and didnít think to document it. Several threads here discuss this process but I donít think I saw pics while I was doing my research.

In short, after I removed the shaft I drilled through the existing holes in the lower piece but was only in plastic until I hit the inner shaft. I stopped there and tried to telescope it with a 3lb hammer but it didnít budge. I hit it with the MAPP torch until plastic stopped oozing out of the holes. (Actually it didnít ooze so much as it grew like black snake pellets on the 4th of July.) After this it telescoped pretty easily, almost by hand. I drilled completely through the inner shaft at the outer shaft holes and plan to get a wooden dowel to keep it from telescoping any more.
__________________
Ben
'68 Chevy C10 Custom LWB 327/TH400 2nd owner
'16 GMC Sierra 1500 SLE Dblcab 4wd 5.3
'72 GMC C2500 longstep bed trailer
ThreeQuarter is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:18 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com