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#1599808 03/17/2026 12:10 AM
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'Bolter
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I have a 1946 chevy truck and the drivers side spindle has a damaged thread. I put an additional spindle nut on it have have been driving it a little that way. (sorry) however I would like to fix it properly but cannot seem to find a replacement spindle for it. When I go to Chevs of the 40s they only list a mustang spindle. Is that supposed to replace the stock spindle on the original axle??

Joined: Sep 2009
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Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Joined: Sep 2009
Posts: 5,754
LuckyLee - Before we try to answer your question, I'm going to move it to the best forum for further discussion. More there when I get it moved. wink


~ Dan
1951 Chevy 3 window 3100
Follow this story in the DITY Gallery
"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
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Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Gearhead, Stovebolt Tech and Parts Tracker, Mod for Swap Meet and GTT
Joined: Sep 2009
Posts: 5,754
The spindle offered by Chev's of the 40's are not original replacement items so won't fix your bunged up spindle. A quick search of a 1929-54 Chevy Master Parts Book shows the '41-'42 Commercial and '46-'50 1/2 ton models all used the same GM# 607306 Steering knuckle spindle for both sides of the trucks. All identified with Casting# 3664551 on the spindle.

Your best bet is to locate a used serviceable spindle from one of these mentioned models/years to serve as your replacement. If you can't find anything local, feel free to post an ad in our Swap Meet Truck Parts Wanted forum and see if fellow Bolters may be able to assist in locating or even supplying one.
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~ Dan
1951 Chevy 3 window 3100
Follow this story in the DITY Gallery
"My Grandpa Carl's Truck and How it Became Mine"
1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver)
US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
Joined: Oct 2021
Posts: 6,684
O
'Bolter
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Can't the spindle be rethreaded?

Fortunately with so many people chopping the front end and installing Mustang II suspensions on these trucks, used ones ought to relatively easy to find.


1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)
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Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
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Originally Posted by Otto Skorzeny
Can't the spindle be rethreaded?
Might be stripped closest to the bearing. He mentioned putting an extra nut on, where the threads might still be good and help hold the inner nut and bearing in adjustment. So rethreading wouldn't help without welding some additional metal on the stripped part. I'd be hesitant to weld on a spindle. Too much opportunity to mess it up completely.


Kevin
1951 Chevy 3100 work truck
Follow this saga in Project Journal
Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
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'Bolter
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Another place to look is 1941-50 1/2 ton and 41-46 3/4 and 1 ton GMCs which used this same 607306 part number.


'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
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'Bolter
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Hy LuckyLee, welcome, one thing we have all assumed is that we are talking about a 1/2 ton truck, are we? Please remember to give us as much information in your questions as you have. You'll get much better answers if we have all the information.

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Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Joined: May 2015
Posts: 10,997
Per another post of his, LuckyLee is looking for a 1/2 ton spindle. So per Dan's part listing, he's got a wide range of years that would fit.


Kevin
1951 Chevy 3100 work truck
Follow this saga in Project Journal
Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
Joined: Aug 2019
Posts: 10
L
'Bolter
'Bolter
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Wow... Thank You everyone for the information. Yes it is a 1/2 ton with 216. Sorry. Now that I have the part number and a few places to look I will start my hunt. Also no nothing there to rethread without welding. Again thank you all for the fast response and information.

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'Bolter
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Thank You

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'Bolter
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All American Classics inc. 360-254-8850, 800-955-4999. PN 607306

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'Bolter
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thank you I will contact them Monday..

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'Bolter
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to all who replied Thank You. I do not know my way around this site very well or how to use it. I do have part numbers and casting numbers etc. but still cant seem to find anything. I will watch our for sale area. Ebay does not have anything right now.

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Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
Joined: May 2015
Posts: 10,997
Post a want ad HERE and a fellow bolter will likely contact you about a replacement spindle. Let them come to you. You can correspond with anyone who offers one by Private Message (click their username and then Private Message) Their reply can be accessed by looking for the flashing envelope on the upper right of any page here on Stovebolt. Posting an ad is the same as posting in the Driveline forum or any other forum here on Stovebolt.


Kevin
1951 Chevy 3100 work truck
Follow this saga in Project Journal
Photos
1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
Joined: Feb 2004
Posts: 29,740
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Kettle Custodian (pot stirrer)
Kettle Custodian (pot stirrer)
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It would also be possible to file or grind the original thread away and rethread the spindle for a castle nut with a slightly smaller diameter thread. (even a metric thread a few thousandths smaller) That would be a safer option than relying on a jam nut to keep the hub on while you search for a replacement spindle.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!
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'Bolter
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well I thought of that and I am an Ex-Tool & Die Maker with a small shop... Lathe, Milling Machine 4 welders etc etc. however I wanted to keep things uniform. I don't like working on things that are mismatched and put together with nuts and bolts all different sizes. I did think about welding it and re-machining it and threading it again. But I need to do some research and see what material it is and what treatments it has gone through. I will put an add in our forum asking for one and will also be contacting the shop mentioned above. Thank You

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Kettle Custodian (pot stirrer)
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Cut the outboard 3 inches off the spindle, drill and tap the stub, and make a new outboard end that screws into the original part. Then you can duplicate the original thread. Cross-pin the repair stub to prevent it from coming apart. That's "machine shop 101" stuff. We were making custom spindles for round track dirt cars 60+ years ago, and they are subjected to far more load than any street vehicle needs to handle. Most of the tool and die people I used to work with could identify steel alloys by touching them to a grinding wheel and looking at the sparks.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!

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