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Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
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| | | Forums66 Topics128,004 Posts1,055,265 Members48,418 | | 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
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on the Internet for over 30 years! and not clogged down
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| | | | Joined: Feb 2012 Posts: 46 'Bolter | | 'Bolter Joined: Feb 2012 Posts: 46 | Whats the difference between a AD 1/2 ton1947-50 spindle with huck brakes vs 1951-54 spindle with bendix brakes? I thought they were different , just happen to have a set of each at the same time and dont see anything different. Thank for the help | | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Check the diameter and location of the bolt holes? | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | The lower two bolt holes are drilled for 7/16" bolts up to 1950. 1951-59 are drilled for 1/2" bolts. You can drill out the earlier spindles and use them.
See the USA in your vintage Chevrolet! My Blog | | | | | Joined: Feb 2012 Posts: 46 'Bolter | | 'Bolter Joined: Feb 2012 Posts: 46 | Ah hah. So what year up to 1950 is the early spindle? | | | | | Joined: Jan 2001 Posts: 5,337 'Bolter | | 'Bolter Joined: Jan 2001 Posts: 5,337 | 1941 started the larger king pin size, used through 1959.
1941-50 are the early style used with Huck brakes.
When Chev went to Bendix brakes in 1951 they increased the lower bolt size.
See the USA in your vintage Chevrolet! My Blog | | |
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