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Mod | | | Forums66 Topics128,080 Posts1,056,062 Members48,433 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Sep 2016 Posts: 6 New Guy | | New Guy Joined: Sep 2016 Posts: 6 | Can anyone help me on this please ? I have a 1950 1/2 ton AD pickup,both front stub axles have badly worn threads.Not an easy repair,I have been offered a complete axle from a 1955 truck.Happy to buy it but its nearly a 6 hour round trip to get it. The part numbers are different for kingpin kits for 41-54 and 55-59 model years, but I can't find any part numbers for the actual stub axles.So are the stub axles the same ? | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | That is known as a steering knuckle. If you look here at the GM Parts catalog GM Listings you will see that they have one part number for 46 to 50 and another for 51 to 57. By the notes it is the same forging but the later setup has larger holes. If you used the 51 brake setup on the front, I think it would be fine. That is the year that they went to the Bendix style brakes. | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | The only difference between the 1950 and earlier, and the 1951-59 spindles are the two lower bolt holes were enlarged from 7/16" to 1/2".
It would be easy to make bushings to fit in the spindles to bush the 1/2" holes down to 7/16"
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Sep 2016 Posts: 6 New Guy | | New Guy Joined: Sep 2016 Posts: 6 | Many thanks,the bushes would be easy for me to make,just need to hope the threads are in good condition...
Stub axle/steering knuckle - another example of different names for the same part ! | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | And I had to throw in spindle, for another name for the same part.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Oct 2016 Posts: 916 'Bolter | | 'Bolter Joined: Oct 2016 Posts: 916 | If only they made new ones... I see that new car spindles are available, though. I am guessing that the car spindles cannot be made to work?
~ Dave
1950 Chevrolet 3600 3/4-ton with 261 engine & T5 Transmission
| | | | | Joined: Sep 2016 Posts: 6 New Guy | | New Guy Joined: Sep 2016 Posts: 6 | Mmm, it would be nice if I could get new ones - even if it meant waiting for shipping AND the cost of it. I'm just hoping the 55 axle will be OK. Want to get it roadworthy for the summer. | | |
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