The Metro Mite is what they considered to be Unibody. There are 2 thin straight "C" channel frame rails that run the distance of the truck and they are welded to the floor to give them strength. Right about at the front steps there is a heavier "sub frame" setup that bolts in. I removed that subframe and cut the S10 frame at the closest distance to fitting inside the Metro frame. After clearing everything out I mocked up the S10 front clip where I need it. I will go back later and weld in 4" square heavy rails to tie the front clip to the rear frame. Then I will box the C channel frame from there back for added strength.