Which W9 Heater/AC box?

Shoreline without a doubt. Just put one in about a month or so ago.

 

You get what you pay for. Can't speak for the Soaring Eagle but Jemali is crap. You'd be better off putting another Paccar box in over the Jemali one.

The rivets aren't the same material the rest of the box is made of so the reaction/corrosion due to dissimilar metals will not have the longevity the Shoreline box will. Go to their website and see the breakdown comparison between the two.

Shoreline is also an American company and they build their boxes in Michigan. They have good support and customer service was top notch. Jemali was some foreigners in Miami who could barely understand me when I called them with questions about their product.

 

That they're foreigners doesn't bother me. That you can't understand them does.

 

My original box was so bad it had literally rusted away. It was held together with Gorilla Tape and Flexseal. Ran it that way for a couple years. The new box is 100 times better. Took me about half a day to do the job. Most of that time was recharging the A/C since I was doing via gravity off a postal scale.

As an aside, I figured out why my fan wasn't cycling when the A/C was on. Apparently, somebody put the wrong trinary switch on in the past. I now have the correct one on and it works like a dream. New evaporator core, heater core, trinary switch, expansion valve and blocked/removed the plastic fresh air duct completely too.