David,
I have a Dodge diesel with the stock exhaust brake. I also have a 72 gal. aux. fuel tank. If I had to give up one, I'd keep the aux. fuel tank, but giving up the exhaust brake would be tough. Hope this helps.
John
Thanks everyone for all the great input!!!
Man, this is expensive stuff.
I'm thinking that I don't want to run out of gas or burn out brakes going down hills.
Thanks again