Out of all the aftermarket products out there, Pacbrake is by far the best I have purchased. I had it installed about 2 months ago and then right before Thanksgiving, the compressor failed. Pacbrake sent me a new one with all the hardware. They are a great company. Not only will this product hold the load back on a long steep grade, but it helps warm up the truck faster, and also will help the truck's service brakes last much longer.. Highly recommend this Company....

 

I just got back from a good run with my Pacbrake. I posted in the towing RV section.

I will be loaded up heavy so I can really test it this week. Sure works quieter then the US Gear I had on my 01.

 

I had one installed on mine when I bought the truck since I was going to be pulling a 35' 5th. Works great! On most long downhills I hardly ever use the service brakes.

Even with the auto trans I can keep the brake engaged once the torque converter unlocks at about 38 MHP.