Exhaust rattle

I have a Magnaflow catback that has been on the car for about 2 months. When it gets hot, it seems to cause a rattle. Anyone with fitment tricks? My guess is that it is hitting the driveshaft. i have tried to adjust it, but no matter what I do, I cannot get it to clear enough.

Thanks

Have you checked to see if its hitting the sheetmetal "g-load" brace that connects the right and left floorpans, right under the intermediate pipe? That's a common place for exhaust sytem interference.

Have you checked to see if its hitting the sheetmetal "g-load" brace that connects the right and left floorpans, right under the intermediate pipe? That's a common place for exhaust sytem interference.

It does hit there if I rotate it off the driveshaft. It only appears to be hitting the lower half of it. Can I cut it down here, or is important for structure / strength?

What can "safely" be used to wedge into this area? I am pretty sure its the over the axle portion of the I pipe thats hitting. I read tons of posts. Some have used radiator hose, muffler tape rolled up....What would work best?

If its hitting the sheet metal g-load brace, simply space the brace lower with some washers between the brace and the floorpan brackets.

If its hitting the sheet metal g-load brace, simply space the brace lower with some washers between the brace and the floorpan brackets.

I got if off there, but now its hitting the body over the axle. This is where I was asking about cutting, not the floorpan brace.

I had a similar problem with my Magnaflow on my 01 vert. Solved it by loosening all of the U-bolts and jamming rubber shims into the hanger after the axle. I usually have to re-tighten the hanger once a year.

I had a similar problem with my Magnaflow on my 01 vert. Solved it by loosening all of the U-bolts and jamming rubber shims into the hanger after the axle. I usually have to re-tighten the hanger once a year.


Sounds like a potential fix

Update:

I installed three washers on each side of the brace in the center of the car. No more rubbing, and the car is a lot smoother now. I did not realize how much vibration I was picking up from this. I assumed it was the driveshaft, but not any more!

thanks for the help all

jim

If its hitting the sheet metal g-load brace, simply space the brace lower with some washers between the brace and the floorpan brackets.

I got if off there, but now its hitting the body over the axle. This is where I was asking about cutting, not the floorpan brace.

Update:

I installed three washers on each side of the brace in the center of the car. No more rubbing, and the car is a lot smoother now. I did not realize how much vibration I was picking up from this. I assumed it was the driveshaft, but not any more!

thanks for the help all

jim

Just curious why you didn't believe me? Serious question.

Just curious why you didn't believe me? Serious question.

It was your suggestion I took. I also had a rub over the axle. Thats the part that concerned me the most. As always your suggestions are correct. Thanks Injuneer