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Click on image for the lowdown. 
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| | | Forums66 Topics128,140 Posts1,056,771 Members48,454 | | 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!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Mar 2009 Posts: 788 'Bolter | | 'Bolter Joined: Mar 2009 Posts: 788 | here are the frame differences
Frame dimensions are as follows: 1963-66
½ ton 2WD: 6-1/32 x 2-1/2 x 5/32
¾ ton 2WD: 6-1/8 x 2-17/32 x 3/16
One ton 2WD: 8-1/8 x 2-13/16 x 3/16
½ ton 4WD 115” WB: 8-1/32 x 2-25/32 x 9/64
½ ton 4WD 127” WB: 8-1/8 x 2-13/16 x 3/16
¾ ton 4WD: 8-1/8 x 2-13/16 x 3/16
As you can see, even the ½ ton 4WD long bed uses the same size frame member as the one ton 2WD.
1960-62 frame ,measurements
½ ton 2WD: 5-15/32 x 2-1/4 x 1/8 ¾ ton 2WD: 7-3/16 x 2-3/4 x 3/16 ½ and ¾ ton 4WD: 7-13/64 x 2-3/4 x 3/16
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