mercer transportation

I love Jimmy John's. Got a soft spot for a pecan waffle too. Lol

 

I think that's it??? You think getting them off and replaced the only option is torching?

 

Yeap, they're like a security lock bolt. Surprised they'd be on your air dryer though. Usually see them on frame cross members.
Can grind or drill them out too.

 

Dude, those can't be on your air dryer. Who told u that? Get under that truck and look yourself.
Wouldn't be the first time nor the last that I'd be wrong, but I'm willing to bet a Iron Skillet steak dinner they're not huck bolts or anything else you need to torch off. Especially a replaceable part.

 

Aluminum is a soft metal. Any titanium tipped holesaw will cut right through it.

 

Are you absolutely sure it's stainless?
The picture you posted of the box it appeared to be common 7ga. aluminum diamond plate.
FWIW, thin aluminum can be cut much like wood but slower. Got access to a reciprocating (saber) saw?
Trace the hole and cut it that way, go slow with lubrication, you may even have to stop and clean the teeth of the saw to restore the cutting edge of the teeth on the blade.

 

Oh that changes things. Take it to a machine shop. A 5 inch diamond tipped holesaw is going to be very very difficult to find and very pricey. Stainless is extremely hard and while it can be done with titanium bits...its a pia worth a handheld drill. Not so bad on a bench drill but a handheld..ugh.

 

Yep. No way a part designed to be replaced every once in a while is held on with huck bolts. Even a freightliner engineer isn't that stupid.

 

Lenox brand hole saws from Low's. I cut large diameter (4"-6") holes in 1/2" steel on a regular basis for one of my customers. Just keep it lubricated. Water, WD4o, oil, or whatever. I get 6-8 holes out of the big ones before I notice them getting dull. Good Luck!!

 

Whoaa!! Let's re-think this. Pete and Fire are not a good idea!!!!