so i looked at a 1999 wj limited today and i noticed it had a 4.0. the was also a tag that looked like a junkyard barcode on the valve cover. My question is, was the limited available with a 4.0? I thought they all had the 4.7.

The 4.0L I6 was standard, and the 4.7L V8 was optional on the Limited.
http://www.wjjeeps.com/newoptions.htm

Mine came with the 4.0 as well.

i have a 97 zj limited with a 4.0 idk if it changed with the wj tho?