Since you have a digital camera, take a few pics of the suspension for clarification for us.
When looking at the springs, measure the height with the load on it, count the number of coils, and compare this to your buddy's. Measure the height of the coil as well as the spacers on top of it, basically from axle mount to frame mount. In stock form, there is a rubber 'isolator' about 3/4" thick on top. Easy lift for a TJ is to add another thicker spacer.