The exhaust is about 50% on top of the drive shaft on my 2006 TJ 4.0L. I noticed it had self clearanced the exhaust pipe after I had bought it. It has started hiting again when braking probably because of the extra weight from the new bumper on it, or something has slipped. The bolts for mounting the precats to the manifold are pretty rusty. I tried to move two of them with a wrench and they will not move. My plan was to loosen them and try to move it over, as I had read on this site. My question is how much play is there? From looking at pictures of new manifolds and precats there doesn't look like any play. They bolt togther with the precat pipe going over the manifold pipe. The pipe ends do look rounded though. Do you just pivot the precats to where you want it and tighten it down, and the flanges don't actually touch all the way around?
I did reach my hand up by the flanges while pushing up on the passangers side of the exhaust pipe. I can fell the flangs moving apart on the drivers side, but I don't feel a gap between the pipes. I can actually move it enough to where the pipe is no longer over the drive shift. Should I just pull it as far as needed and secure the exhaust with a strap to hold it there?
The Jeep doesn't have the 3rd CAT. It is just a straight pipe with a metal hanger holding the pipe up by the passanger control arm. It doesn't use the hanger like it would if it had the 3rd cat.
I would like to have new precats and have a proper hanger installed this summer. But, for now I just need it to quite hitting.
One other question, does the factory exhaust have smooth bends or ridges coming down and around after the precats. Mine has ridges.
I did reach my hand up by the flanges while pushing up on the passangers side of the exhaust pipe. I can fell the flangs moving apart on the drivers side, but I don't feel a gap between the pipes. I can actually move it enough to where the pipe is no longer over the drive shift. Should I just pull it as far as needed and secure the exhaust with a strap to hold it there?
The Jeep doesn't have the 3rd CAT. It is just a straight pipe with a metal hanger holding the pipe up by the passanger control arm. It doesn't use the hanger like it would if it had the 3rd cat.
I would like to have new precats and have a proper hanger installed this summer. But, for now I just need it to quite hitting.
One other question, does the factory exhaust have smooth bends or ridges coming down and around after the precats. Mine has ridges.