Over the weekend I replaced my entire exhaust system, downpipe back. I bought a "direct fit" system by Bosal that included all 3 cats and a dynomax muffler with tailpipe. Everything went pretty smoothly once I had the correct swivel socket to remove the mini cats from the exhaust manifold.
On my test run after completing the installation, I heard/felt something hitting. Come to find out, the u-joint on the front driveshaft is occasionally hitting the downpipe. While the jeep is parked, it looks like I have about 1 1/2" of clearance between the two, and everything feels really tight. I tried using a pry bar to see if I could get more clearance, but to no success.
Any suggestions or ideas. Should the engine be moving that much to cause the occasional interference? It seems to happen more pronounced when I brake from 10+mph. Should I just take it to a local muffler shop??