Slosh Tubz new company project "Square Peg" frame laying 1987 GMC Jimmy

[babyblueoval]

Originally Posted by jkeating1

Diggin this phase! So---is the frame the same on a 4-by as a 2-by? Particularly the front crossmember 'arch'. And while I'm asking, maybe a '69-'72 K-to-C Blazer conversion veteran can chime in on the same Q for that gen.
JK

On 67-72's the frames are not the same from 4x2 to 4x4. On the front suspension, the 4x4 arch is higher than the 4x2. In the rear, the frame rails on the 4x2 kick in after the rear suspension and the 4x4 rails continue straight all the way back. I'm converting my 4x4 to 4x2 by shortening a 4x2 frame and moving the body mounts as needed, that way I can use Nathan's Dropmember C4. Here are a couple pics to show the difference.
Looking straight down the 4x4 rails:

4x4 and 2x4 side by side, you can see how much higher the front suspension arch is, also an idea of the difference in body mounts:

Hope that helps.