Quote Originally Posted by warey View Post
no not much driving it was a bosses bus.
its a vaccum operated diaphragm on the exhaust, so when your foots off the accelerator and not clutch the diaphragm closes and forces the gasses out a small oriface in the exhaust pipe its self causing a restriction which slows you down effectively. and its on a switch for when you dont want to use it
Cheers Mate :-) I do no what exhaust brakes are I was just wondering what would be the point in them on a 4wd unless its been towing very heavy loads.. Owwww I no its so all the people who think there driving a truck can use it wherever they go LOL

Cheers Lewy