I've only used the Pac Brake but it seems to work great and has held up well for 12 years of use. We like to camp on the other side of the state so it see's a lot of mountain pass use. Don't even have to touch the service brakes!
I installed it myself and it was easy. The exhaust elbow fit perfectly - a quality part.
I prefer the Pac or any other aftermarket brand over the Jake because of the issues with the Jakes vacuum pump failing. When it does, it can take out the belt and even damage the radiator some times.
If the other brands fail you just lose the EB and nothing else.
If you do go with the Jake, keep the standard belt with you just in case.
You DO NOT need to make any changes to the vehicle for EB use.
No matter how you go, you'll kick yourself for not getting one sooner!!
BTW, your trans and TC are completely up to using a EB. Even the computer was upgraded for it. The auto trans was certified for EB starting with model year 2006 and even kept it's warranty when one was added.
You do NOT need to make any changes to the truck at all.
