Hi all, I'm in the process of installing a 4" lift in my 74 cj5, I used 2.5" wide springs and have the back done, the drive shaft angle is quite severe at the moment, the kit came with a transfer case drop kit with spacers width of 1.25". I wouldn't say this will be enough and was thinking I will need shims for the rear axle, I was just wondering what deg I should get, 6 deg seems to be the norm from a few searches that I seen. I know everyone says to use steel ones so I will. Also anyone know of a supplier in the UK