Hello all,
New to the forum. I have a question. Have a '95 YJ, 6" spring over, 2" body, running 38" MT's. Sadly it has a 4 cyl stock. I know an engine swap is out of my budget for now. I understand changing diff gears is the way to go for now. What ratio of gears do I need to have installed. Low 5's? Thanks  

4.88's is prolly the lowest you'll find for the dana 30.  

If its in your budget swap in a pair of dana 44's and you'll get more options.  

Bare minimum low 5's. I'm running 36's with 4.88 and a 6 cyl, and that's just about perfect for using it on and off road. High 5's if your not going to drive it on the street.  

Yes high 5's would be nice, but where are you gona find them for the dana 30?  

...and runin 38's with stock axles? i wish you luck!  

Sorry I missed the Dana 30 Part completly,
4.88 is the lowest I've seen anywhere for  a 30.
spookietia is 100% right.
38's with a 30 is definetly playing with fire.