1450 Cracked Aluminum Muffler Support
 

I wanted to know how imperative it is to either fix or replace this aluminum piece if it is cracked. I don’t have a good used one, but I did purchase a steel muffler brace that is supposed to keep this from happening.

What do you guys do to repair these, or should I just replace it? If I was to install that brace, could I just leave this cracked one on?

Pictures of the cracks

Fix it if you want, it will prolly crack again. In your second picture, that bolt. I removed mine and drilled a through hole, added the muffler crutch, added a backing plate (on the coil side) and then through bolted it all.

How would you fix it? I was thinking of drilling 2 small holes at each end of the cracks, grooving them out a little with a dremel, and then filling all cracks and holes with jb weld.

Find someone who can weld it for you. You can also have them weld a backup plate where that top bolt is.

finding someone that will weld aluminum around here hasn't proved to be easy or reasonable. I've got something else I wanted welded.

The tin on my 1450 had been welded years ago and the aluminum air duct was cracked at most of the welds when I took it apart in 2018. I fabricated some small angle iron reinforcement for the areas that needed a threaded hole and used rivets to hold the new angle iron in place on the air duct. Used sheet metal patches and rivets to bridge some of the other cracks. I think installing a muffler support bracket will help quite a bit. It's not pretty, but it is holding together.

https://i.ibb.co/YTx6C2t/IMG-1027s.jpg