it locks up the torque converter and makes the brake very effective.
Philip said:Our year model of trucks do not have a lockup converter. An exhaust brake would be a waste of money without upgrading to a trans with a lockup converter.
On the truck your looking at. About all it does is add weight to it. It does nothing to help slow it down. If you buy the truck about all the exhaust brake is good for is trading material. Someone with a stick shift would buy it.
pepecat said:on these trucks an ebrake with auto is like trying to push a piece of spagetti. good luck with that