Does anyone know whare I can get some longer U bolts?

 

pretty much any autoparts store, i found a cheap set that were sold as a lowering kit at schucks/o reilley. i know u can order some from car-quest as well. just measure the diameter of the rod, the axle diameter, and length you need.

 

Alternatively, if there are any spring shops near you, you can go there as well and I'd recommend them over a place like Autozone or NAPA. The materials they use to custom-cut springs and u-bolts are generally meant for semi's and other large trucks...and if it's tough enough for them, it's tough enough for your Jeep.

*edit*
When I ordered my RC kit, I was sent the wrong u-bolts and had to get more. I went in with the length I needed, thickness, and radius of the curve, and they had a full set bent up for me in about 5 minutes. Cost: $30. Not too bad.