'72 C20 Suburban to 4wd

[special-K]

Mt friend did a lot of research, including finding drawings with frame dimensions/contours, before swapping a '67 Panel body onto a '72 K/10 Suburban chassis. He found that the truck frame is the same except for body mount locations. The only difference between 4wd and 2wd frames is the 4wds have about an inch more rise where it bows over the front axle in the engine area. A full frame swap using a 127" K/10 or K/20 chassis is very doable

[Dieselwrencher]

Originally Posted by special-K

Mt friend did a lot of research, including finding drawings with frame dimensions/contours, before swapping a '67 Panel body onto a '72 K/10 Suburban chassis. He found that the truck frame is the same except for body mount locations. The only difference between 4wd and 2wd frames is the 4wds have about an inch more rise where it bows over the front axle in the engine area. A full frame swap using a 127" K/10 or K/20 chassis is very doable

This only applies to leaf spring rear suspension frames. The coil spring frames are shaped a little different in the rear. This only matters when you try to put leaf springs on a coil spring frame. Also, the rear of the frame horns are shaped differently on suburban frames than a pick up.