71 k20 frame

[mx289]

Originally Posted by ryanroo

This isn't entirely true. the outside dimension is the same and all the parts are the same, the same but the 3/4 uses a slightly thicker material.

I have wondered this myself and have found threads that tell me:

1/2 frames are 10 gauge
3/4 frames are 7 gauge
1 ton frames are 4 gauge