How to ID the difference 4 x 4 frame 1/2 ton vs 3/4 ton?

[weim55]

‘61 4x4 chassis that someone put Square body three-quarter ton axles under it. Not sure if this was a 1/2 or 3/4 Chassis originally. Or there are some things I can check to tell the difference?

Steve weim55 Colorado
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[GottaK20]

From this thread:http://67-72chevytrucks.com/vboard/s...d.php?t=679156

1960-66 frame dimensions
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
ron


I hope that helps!