After just recently replacing my exhaust manifolds that were starting to rot. My truck again has started with the, where the hell is that coming from noise? Upon closer inspection I noticed that my cats are now starting to rot, there are several holes starting to open up on both sides. So I went and bought a new set and was wondering do I need to remove the crossmember for removal/installation. My truck is a 98 4.6l 4x4. If I remove the crossmember do I need to support the tranny, and if so how do I do that without the support getting in the way.

 

you should be able to do it without removing the cross member if i remember corectly.