leaf ?

can i use wagoneer leaf springs and simply replace the top leaf with my stock xj one to be used as a rear lift. also if so, how much lift would this provide? i was going to do the rocklizard BB and use a stock XJ pack but my friend has wagoneer leafs taht he'll give me for free.

as long as the leafs are the same width i think it would work as for heigth? i have not clue i used springs off a z71 and cut them to fit using all but the top leaf of that pack combined with my stock xj springs for about 5-6 inches of lift. originally i had 3 inch blocks in the back but had to much axle wrap and now the front end is sitting way to low with 4'' tj terra flex coils, so im thinking i got about 6 inches out of just the springs