If Ford is so adamant about NOT having an exhaust brake on the F-250 & 350, why do they offer an exhaust brake on the 550. Seems that an exhaust brake on the 250 & 350 would be a safety issue when towing heavy trailers, etc.
Your right, I went back to this web aite and checked! Cumming and Cat engines. Something I discovered that could scare you is that in the discussion Ford make mention of the fact that some engine service might require the cab to be removed.
Also, the 550s are in a different class and have different engines and also fall into different emissions classes.
I believe its the 650's that start with the different engine options. Cause then you are getting a medium duty chassis. The 550 is still the regular ford body. The 650 and up has the tilt forward big rig style hood and bigger axles,etc....
10,000 LAKES CHAPTER MEMBER
2003 F350 Crew cab long box, FX4, 6.0, torqshift, Lariat.