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#1 |
Registered User
Join Date: Oct 2011
Location: S Texas
Posts: 5
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Lower steering column bearing
Anyone have any suggestions on a replacement lower steering column bearing for my 85 K20 4x4 4spd floor shift. The truck has a horrendous clunking when on rough roads and I grabbed the steering shaft and it is loose at the point where it hooks up to the column. I removed the retainer clip and pulled out this weird looking bearing and it is loose and rough.
I work at a GM dealer and I think the catalog is wacked. If I look at the parts description they list a lower column bearing but the drawing number shows it up top. The one in the pic at the bottom shows to be discontinued. Sounds like a trip to the junk yard may be in order, but I cant imagine I will find another 27 yr old bearing that is any better. |
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#2 |
Registered User
Join Date: Feb 2012
Location: Austin, Arkansas
Posts: 248
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Re: Lower steering column bearing
Take the bearing to a NAPA,or CarQuest,and see if they can match an after-market one,from the #s on yours,or id/od measurements.
__________________
Always expect the unexpected,....but don't expect the unexpected to be the unexpected you expect ! I'm busier than a one-legged cat,in a sandbox! Veteran..and proud ! I can't fix what ain't broke....you want I should break it? |
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#3 |
Registered User
Join Date: Oct 2011
Location: S Texas
Posts: 5
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Re: Lower steering column bearing
Tried that. The Napa guys we use were going to take it somewhere they said sells bearings and see what happens, but wasnt very optimistic. It isnt just a standard flat roller bearing. BUT...since then I just took a gamble on the GM bearing, and I finally found a pic online associated with the GM part number and it looks right. Looks like the catalog pic was just a little hard to decipher with the way the explosion was laid out.
Here is a pic of the bearing....GM part #7805700 ![]() I'll come back and cofirm if it worked or not just for future info's sake. I also titled the thread to make it easy to find. I hate when people dont do that, makes searching a nightmare and then the forum police get after you for starting a thread without searching.... ![]() |
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#4 |
Registered User
Join Date: Jan 2009
Location: Southern Md
Posts: 228
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Re: Lower steering column bearing
__________________
04 Yukon XL 2500 w/ Quadrasteer ![]() 61 Chevy C60, 261 inline six 86 Chevy C20 2wd, Banks 6.2 05 GMC Sierra 2500hd Duramax |
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#5 |
Registered User
Join Date: Oct 2011
Location: S Texas
Posts: 5
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Re: Lower steering column bearing
Worked like a charm!
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#6 |
Registered User
Join Date: Jul 2013
Location: Canton, TX
Posts: 245
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Re: Lower steering column bearing
X 2
__________________
1980 Chevy K10 Silverado --> Build Page My wife told me I spent too much time on Facebook. So I bought an old truck. Now she wishes I was on Facebook, it was cheaper. ![]() |
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#7 |
Registered User
Join Date: Oct 2011
Location: S Texas
Posts: 5
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Re: Lower steering column bearing
Funny this came back up....that bearing wasnt what was wrong, it was actually the brake pedal jiggling around. I busted my ass replacing the little bushings in the pedals for very little improvment.
Now I either deal with it or put my boot under the brake pedal and pull up on rough sections of the road. Obviously off road you dont notice it, but I have a mile long road off the highway that has been patched so many times it is all patches and the rest of the truck is nice and quiet except for that... |
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#8 |
Another Day, Another Dollar
Join Date: Nov 2008
Location: North Vancouver, BC
Posts: 1,316
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Re: Lower steering column bearing
check your e brake pedal too. mine rattles loose once a year so and rattles like a bastard in the dirt
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-78 K20 Cheyenne 454 long box, 4" lift, 35" MT's, '84 cab, '80 box "its hip to be square" ![]() |
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#9 |
Registered User
Join Date: Jul 2013
Location: Canton, TX
Posts: 245
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Re: Lower steering column bearing
Well... It didn't fix rattle, and it's not thee brake or the brake pedal, but I can feel through the steering wheel and through the brake if I put my door under it and pull it back towards the seat. Don't know where else to check from here. Any suggestions are welcome!
__________________
1980 Chevy K10 Silverado --> Build Page My wife told me I spent too much time on Facebook. So I bought an old truck. Now she wishes I was on Facebook, it was cheaper. ![]() |
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#10 | |
Senior Member
![]() Join Date: Jun 2010
Location: Illinois
Posts: 2,957
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Re: Lower steering column bearing
Quote:
__________________
Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie |
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#11 |
Registered User
Join Date: Jul 2013
Location: Canton, TX
Posts: 245
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Re: Lower steering column bearing
That is going to be the next step. The PO said that he replaced the whole front end, but I will be checking it out. I know that most of the joints have new rubber on them, I can see that, but will be checking the rest to be sure. Trust, but verify :-)
__________________
1980 Chevy K10 Silverado --> Build Page My wife told me I spent too much time on Facebook. So I bought an old truck. Now she wishes I was on Facebook, it was cheaper. ![]() |
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#12 |
Senior Member
![]() Join Date: Jun 2010
Location: Illinois
Posts: 2,957
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Re: Lower steering column bearing
Not sure if there is a problem with the intermediate shaft but the newer trucks have that issue. You have to disconnect the shact from the steering box and stroke the shaft back into the column to redistribute grease. I have to do my 03 2500 that way every so often because it sounds an feels like there is something loose underneath the truck.
__________________
Roy 85 Short Bed Silverado- Work in progress. http://67-72chevytrucks.com/vboard/s...d.php?t=564818 1987 R10 shortie |
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#13 | |
Registered User
Join Date: Jul 2011
Location: SW Ontario
Posts: 1,204
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Re: Lower steering column bearing
Quote:
Alex. |
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#14 |
Registered User
Join Date: Jul 2013
Location: Canton, TX
Posts: 245
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Re: Lower steering column bearing
Well guys, after checking everything else out on the truck, which seemed to be mostly in order, I had the truck idling and noticed that the brake booster was moving left/right at low idle. I grabbed ahold of it and moved it a little more left and right, and discovered that it was what was making the noise. I happened to be at work with no tools in the truck (yeah, I know. Bad idea), so I too a bungee cord and strapped it to the fender. All the way home NO NOISE, NO RATTLE. Nice and quiet!!! So, once I got it back to house, I took a look at it and a couple of nuts were a little loose, so I tightened them back down. I still have a little bit of a rattle now without the bungee, but it's not near as bad as it was.
So, the moral of the story is, if you have a rattle in the dash and you can't figure it out, check the brake booster mount and nuts. This whole time I thought it was steering, front end etc, and it may turn out that any one of those may have been a contributor, but the root cause was the brake booster.
__________________
1980 Chevy K10 Silverado --> Build Page My wife told me I spent too much time on Facebook. So I bought an old truck. Now she wishes I was on Facebook, it was cheaper. ![]() |
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