Rust on the driveshafts

Rich Z · 10-24-2019, 08:22 PM

So I am underneath the Trailhawk today touching up the rust on the driveshafts, and something caught my eye. The exhaust pipe at the rear, coming out of whatever that large central flat canister thing is, is crimped or dented in two places on the pipe on the passenger side.

Now since this has a slash of green paint over top of it, that is indicating to me that someone saw this and made those marks on the pipe. But what does that mean? Is this the way that pipe is supposed to be? It does look like the crimps are intentional and not accidental. But exhaust restrictions just aren't a real good thing for performance, at least from what I understand. So I don't understand why something like this would have purposely be done.

Any ideas?

Rich Z · 10-24-2019, 08:32 PM

So yeah, I am underneath the Trailhawk poking around, and spotted something else that just looks odd to me. Yeah, I know, this is my first Grand Cherokee, and likely this is just something that is the way it is because Jeep wanted it to be this way.

But still..... There is a part on the frame on the passenger side, and there is what looks like a place where that same part should be on the frame on the driver's side, but it isn't. That wouldn't bother me so much, except on the spot on the frame on the driver's side, it actually looks like something USED to be there and was removed. Now THAT does get me curious.

I tried looking up that part number on the label, but didn't come up with anything to tell me what that part is I'm looking at. And just looking at it, darn if I can figure out what the heck it is there for or what it is supposed to do. Anyone have any ideas? And if you have looked underneath of your Trailhawk, do you have the same situation on your vehicle?

Sorry if I seem full of suspicions and paranoia, but I had a REAL bad situation happen several years ago with a vette I had a couple of shops work on. So I am nowhere near as trustful as I used to be. If something seems questionable to me, I question it.

10-24-2019, 08:22 PM	#1
Rich Z Administrator Join Date: Oct 2015 Location: Crawfordville, FL Posts: 193	Meanwhile, underneath the Trailhawk... So I am underneath the Trailhawk today touching up the rust on the driveshafts, and something caught my eye. The exhaust pipe at the rear, coming out of whatever that large central flat canister thing is, is crimped or dented in two places on the pipe on the passenger side. Now since this has a slash of green paint over top of it, that is indicating to me that someone saw this and made those marks on the pipe. But what does that mean? Is this the way that pipe is supposed to be? It does look like the crimps are intentional and not accidental. But exhaust restrictions just aren't a real good thing for performance, at least from what I understand. So I don't understand why something like this would have purposely be done. Any ideas?

10-24-2019, 08:32 PM	#2
Rich Z Administrator Join Date: Oct 2015 Location: Crawfordville, FL Posts: 193	And still something else I have a question about... So yeah, I am underneath the Trailhawk poking around, and spotted something else that just looks odd to me. Yeah, I know, this is my first Grand Cherokee, and likely this is just something that is the way it is because Jeep wanted it to be this way. But still..... There is a part on the frame on the passenger side, and there is what looks like a place where that same part should be on the frame on the driver's side, but it isn't. That wouldn't bother me so much, except on the spot on the frame on the driver's side, it actually looks like something USED to be there and was removed. Now THAT does get me curious. I tried looking up that part number on the label, but didn't come up with anything to tell me what that part is I'm looking at. And just looking at it, darn if I can figure out what the heck it is there for or what it is supposed to do. Anyone have any ideas? And if you have looked underneath of your Trailhawk, do you have the same situation on your vehicle? Sorry if I seem full of suspicions and paranoia, but I had a REAL bad situation happen several years ago with a vette I had a couple of shops work on. So I am nowhere near as trustful as I used to be. If something seems questionable to me, I question it.