6066 (1960-1966) GMC Truck Club Bitcoin now accepted here! 
Pay Dues
Pay Dues or become a Site Supporter
 



Go Back   6066 (1960-1966) GMC Truck Club > 6066 GMC Truck Club Forum > Transmissions and Rear Ends


Transmissions and Rear Ends Three on the tree or four in the floor? Shift it all here.

Reply
 
Thread Tools
  #11  
Old March 8th, 2020, 07:34 PM
Sonic65's Avatar
Sonic65 Sonic65 is offline
-= Dues Paid =-
 
Join Date: Sep 2013
Location: San Antonio Texas
Truck: 1965
Posts: 84
Rep Power: 65
Sonic65 is on a distinguished road
Default Re: Info on rear wheel bearings

I have used repair bearings and repair seals when needed and have had no issue with them leaking. As long as the new location is smooth, you should not have an issue. I try to use Moog, Napa or Timkin parts. I stay away from auto part store house brands when I can. I had a leaking front main seal on 350 Chivvy engine that I used a repair seal on and after 15 years it doe not leak.
Reply With Quote
  #12  
Old March 9th, 2020, 12:30 AM
LEWISMATKIN's Avatar
LEWISMATKIN LEWISMATKIN is offline
-= Site Supporter =-
 
Join Date: Jan 2013
Location: RIDGE MANOR, FLORIDA
Truck: 1965 1002 GMC V6-305E
Age: 60
Posts: 203
Rep Power: 101
LEWISMATKIN is on a distinguished road
Default Re: Info on rear wheel bearings

If the axle shaft is pitted in an area where the Timken inner seal wouldn't hold up, then by all means use the SKF bearing. If it isn't, I would use the Timken bearing. You can fill the cavity with wheel bearing grease, and the inner seal will keep the gear oil away from the grease. If you choose the open sided SKF bearing, I then recommend that you overfill the axle with lubricant. This is my reasoning: oil has to migrate down the axle tubes to lubricate the axle bearings. If you only fill the axle to the bottom of the fill hole, the only time oil gets to the bearings in any quanity is when either one side is on a side incline (L or R) or in foam/splash form. When the axle is overfilled (i tell people to cover the bottom half of the fill hole. Fill until lubricant runs out over your thumb, then install the plug). Oil will migrate down the tube, and get to the wheel bearings, eliminating the dry start which can happen. I hope I have been of some assistance.
__________________

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Reply With Quote
  #13  
Old March 9th, 2020, 06:38 AM
stevecamper stevecamper is offline
Junior Member
 
Join Date: Mar 2020
Location: Whitecourt, Alberta, Canada
Truck: 1966 C1000 Stepside
Posts: 7
Rep Power: 0
stevecamper is on a distinguished road
Default Re: Info on rear wheel bearings

This has been great advice! Thanks everyone!
Reply With Quote
  #14  
Old March 9th, 2020, 03:05 PM
ilvracn's Avatar
ilvracn ilvracn is offline
-= Dues Paid =-
 
Join Date: Nov 2013
Location: atlantic iowa
Truck: 1966 gmc 1500
Age: 55
Posts: 160
Rep Power: 83
ilvracn is on a distinguished road
Default Re: Info on rear wheel bearings

I believe your axle is out of a chevy truck. it has the large axle ends, and the track bar locator for the trailing arm suspension. make sure to measure the length of the axle before ordering, the length of the axle and tube changed in 1967. the complete rear ends are interchangable, but the axle length is different.

Rick
Reply With Quote
  #15  
Old March 10th, 2020, 02:17 AM
Ed Snyder's Avatar
Ed Snyder Ed Snyder is offline
-= Dues Paid =-
 
Join Date: Jan 2013
Location: Medford, Oregon
Truck: 1962, 1965, 1967
Posts: 624
Rep Power: 210
Ed Snyder will become famous soon enough
Default Re: Info on rear wheel bearings

Quote:
Originally Posted by stevecamper View Post
The VIN is 6C91534818957A which tells me is was a C1000 and an 8 cylinder.
The Canadian GMCs of that era were essentially Chevy trucks underneath with GMC bodies on top. See http://www.oeltd.net/doc/6066gmc/VINs/gmc-canada.htm for some Canadian VIN info. As far as I know, the Canadian versions did not come with DANA rear ends. So your rear end could be the factory original rear end.

You might be able to find additional assistance at http://67-72chevytrucks.com/vboard/forumdisplay.php?f=6.
__________________
Ed Snyder
Medford, Oregon
1962 K1000 Suburban 401M & SM420
1965 2500 Suburban 351C & SM420 with Watson overdrive
1967 CM1500 pickup 351E & NP435
Reply With Quote
  #16  
Old March 11th, 2020, 06:55 AM
BobBray BobBray is offline
-= Dues Paid =-
 
Join Date: Feb 2013
Location: Los Angeles, CA.
Truck: 1967 CM 2500
Posts: 152
Rep Power: 87
BobBray is on a distinguished road
Default Re: Info on rear wheel bearings

Ed Snyder is right, Canadian GMC pickups during the 50's and 60's were Chevy's built in Oshawa with GMC grilles and emblems. Chevy engines, Muncie transmissions, Corporate or Eaton rear axles. What he has there looks like an old Chevy 12 bolt. Lewis Matkin has a good idea, I think there is a repair type bearing available for that axle. But, a good axle shaft should not be to tough to find, even in Canada!
Reply With Quote
  #17  
Old April 6th, 2020, 11:34 PM
stevecamper stevecamper is offline
Junior Member
 
Join Date: Mar 2020
Location: Whitecourt, Alberta, Canada
Truck: 1966 C1000 Stepside
Posts: 7
Rep Power: 0
stevecamper is on a distinguished road
Default Re: Info on rear wheel bearings

Hi Folks! Thanks for the info. I elected to go with the repair bearing for now. I installed it and it seems good. My buddy turned the axle hub face down and cleaned up the bearing surface as best he could. He also found the axle slightly bent which we corrected. I have attached a pre and post pic of the first wheel overhaul with the repair bearing installed which turned out pretty good. Should be able to get it past inspection when it looks like this!
Attached Images
File Type: jpg 20200405_205114.jpg (2.38 MB, Multiple views, 6 clicks)
File Type: jpg 20200301_030411929_iOS (2).jpg (1.40 MB, Multiple views, 5 clicks)
Reply With Quote
Reply

Bookmarks

Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Re: Wheel bearings Archiver Previous Forum Posts 0 April 23rd, 2008 01:32 AM
Re: [6066 GMC] Re:Wheel bearings Archiver Previous Forum Posts 0 April 22nd, 2008 01:46 AM
Re:Wheel bearings Archiver Previous Forum Posts 0 April 22nd, 2008 01:10 AM
Wheel bearings Archiver Previous Forum Posts 0 April 21st, 2008 01:23 AM
Some starting issues - Front wheel bearings? Archiver Previous Forum Posts 0 March 6th, 2007 12:55 AM


All times are GMT +1. The time now is 02:35 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2013, Jelsoft Enterprises Ltd 1131601135074|1600004120|0
Feedback Buttons provided by Advanced Post Thanks / Like (Lite) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.