Moving Axle + Bolt in Notch = ?

[oldschool18]

If you just put a 4 link on you can get rid of the trailing arms, I would put a jack under the frame remove the rear springs and let it down and to the axel and see how much of a offset there is toward the front of the wheelwell.....when i did my 85 c-10 there wasnt enough of offset that you could even tell. If your planning on laying frame, knock the rear tubs out you will have to cut the floor out and you should be able to get at the frame it might be tight in spots and grinding some weld would suck......when I did mine I lowered the frame to the axel marked the frame and then welded my notch just about a inch over the center mark on the frame, just spot weld everything and both sides make sure it the same and where you want before you weld it fast and then cut the frame last......4 link makes the rear real tight