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Warn M3B lock o matic hubs |
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Stretch 
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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 Topic: Warn M3B lock o matic hubsPosted: 05 Feb. 2015 at 2:14pm |
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Anyone have install/service instructions for these hubs? I looked around on google, and found one pic so far, exploded diagram, but no parts description.
Pic of hubs.. getting ready to clean them up.   |
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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duffer
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Joined: 02 Feb. 2012 Location: Bozeman, MT Status: Offline Points: 1087 |
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Posted: 05 Feb. 2015 at 2:41pm |
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Really not a lot of technical expertise needed.
I did have this in my links: http://vintage.mitchell1.com/PClubData/chassis/ent78/V2D789062.pdf
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1955 3B: 441sbc,AGE 4 speed transmission, Teralow D18w/Warn OD, 4.11:1 D44's/ARB's, glass tub & fenders, aluminum hood/grill, 8274, York OBA, Premier Power Welder; 67 CJ5: 225,T86AA, D18, 4.88's, OD
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duffer
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Joined: 02 Feb. 2012 Location: Bozeman, MT Status: Offline Points: 1087 |
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Posted: 05 Feb. 2015 at 2:50pm |
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Here's some more info that may be useful:
http://www.binderplanet.com/forums/showthread.php?t=81171
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1955 3B: 441sbc,AGE 4 speed transmission, Teralow D18w/Warn OD, 4.11:1 D44's/ARB's, glass tub & fenders, aluminum hood/grill, 8274, York OBA, Premier Power Welder; 67 CJ5: 225,T86AA, D18, 4.88's, OD
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Stretch
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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Posted: 05 Feb. 2015 at 3:40pm |
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Looking through that, I am missing the spindle nuts and lock ring for spindle nuts. Any idea where to find these?
Attached pdf here. |
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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duffer
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Joined: 02 Feb. 2012 Location: Bozeman, MT Status: Offline Points: 1087 |
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Posted: 05 Feb. 2015 at 4:00pm |
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No new parts sources for these that I know of so you need to find them used. Unfortunately, that usually means a complete set of used hubs. Also, as noted by the different part numbers on your first post, there are two different lock nut OD's. I suspect all the early hubs use the small diameter one.
Here's a photo of the two lock nuts-both of these pretty chewed up by people that apparently couldn't get the set screws out or didn't know they were there.  |
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1955 3B: 441sbc,AGE 4 speed transmission, Teralow D18w/Warn OD, 4.11:1 D44's/ARB's, glass tub & fenders, aluminum hood/grill, 8274, York OBA, Premier Power Welder; 67 CJ5: 225,T86AA, D18, 4.88's, OD
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Stretch
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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Posted: 06 Feb. 2015 at 1:41pm |
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I've got one spindle nut. Think it's the one that goes againist bearings. It's pretty well shot, threads are stripped.
Looks like I need a washer, then inner nut, lock washer, then outer nut. Going to need some dimensions, or I can pull the hub off the jeep and figure out how far the outer nut has to be to engage the nylon blocks(used for auto feature) If all else fails, I can remove the nylon blocks, install regular spindle nuts, and use it as a standard locking hub. Think I'm going to try and use a spare set of regular spindle nuts and turn the OD down, drill set screws and spanner holes. The one nut I do have measures 2.115. Pics of nut I have, think it is an inner.   Spare standard spindle nut.  |
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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Stretch
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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Posted: 06 Feb. 2015 at 3:25pm |
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Got everything apart, cleaned, greased, and together.
Painted hubs. Clearcoated the outer hub and knob.   Edited by Stretch - 06 Feb. 2015 at 3:27pm |
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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Stretch
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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Posted: 06 Feb. 2015 at 5:42pm |
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From what I can tell, front spindles are 1.625-16 thread. This seems to be a very common spindle nut size, so I may be able to pick up some nuts that will work.
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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48cj2a
Bantam Trailer Moderator 
Sponsor Member Joined: 22 July 2005 Location: Central, IL Status: Offline Points: 4521 |
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Posted: 06 Feb. 2015 at 5:57pm |
  Is the lower picture the actual install sequence?
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Art C USAF (Retired)
47 CJ2A #134955 Project 48 CJ2A #206759 62 L6226 Station Wagon #58167 10900 45 T3-C #191 Project http://www.bantamt3c.com http://www.48cj2a.com |
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Stretch
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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Posted: 06 Feb. 2015 at 11:02pm |
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Looks like it.
Stopped at the junkyard today, and they had a set of lock matic still on a Jeep! To bad they won't sell them, someone wants the whole Jeep. I left my number. |
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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wheelie
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Posted: 08 Feb. 2015 at 2:53pm |
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What did you use to clean up the brass and aluminum parts? I'm looking for a faster way as I seem to spend a lot of time on these areas. Thanks. Yours look great BTW. Nice job.
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Stretch
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Posted: 11 Feb. 2015 at 6:36pm |
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I've been using a glass bead sandblaster at work. First I degrease and scrub the crap out of it, the blaster won't take off the thick stuff. Was worried about using it on aluminum, but it does a very nice job. Works pretty quick too. Shot some clear coat paint on it when I was done.
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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Stretch
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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Posted: 11 Feb. 2015 at 6:47pm |
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Ordered a set of warn spindle nuts. Not the right ones, but close enough I can get them to work.
Warn #32720 or 27997 Welded up the notches on the outer nuts, then turned them smooth. Used an extra spindle, bearings, and hub to set everything. Had to cut down the width on the inner nut, so outer nut sits at the right height for the nylon blocks(auto feature). Didn't use a spacer between nut and bearing, nut is hardened. Outer nut width was 2.170. This is about .050 bigger than the one old nut I had. Fits nice inside nylon blocks, and still room so spring for blocks doesn't rub the hub. Still have to drill 2 holes for spanner wrench, and tap 3 holes for set screws. But should have a working hubs when done! Test hub and bearings  One nut with welded up notches, another started machining.  Nut set. Still need extra holes for outer nut.  Inner nut  Lock ring  Outer nut  Gap before setting lock out on outer nut.  Lockout on.  Edited by Stretch - 11 Feb. 2015 at 6:54pm |
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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Stretch
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Joined: 05 Oct. 2005 Location: Mansfield, OH Status: Offline Points: 275 |
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Posted: 12 Feb. 2015 at 3:51pm |
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Drilled 2 spanner wrench holes, and tapped 3 set screw holes(8-32) in each outer nut. This project should be done! Back on the shelf, until I have jeep ready for them.
Pic of finished outer nuts.  |
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1946 CJ2A #44093
1946 CJ2A #44754 1952 REO M108 Crane/wrecker Pile of parts... |
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ggensh
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Posted: 10 Aug. 2021 at 8:12pm |
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Great information in this thread. I inherited a slightly modified '46 CJ2A without having the background information or manuals. Every hour of working on this project opens new avenues of research. Finally spotted the M3B on the Warn hub face. Google took me right here. First big step forward. I still need to figure out how to dismantle the outer pieces that lock and unlock the hubs. My big question (because the large axle nut only took finger pressure to remove) is what are the torque specs to tighten this nut as I re-install everything? I'm guessing 50'-lbs. Many thanks
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