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just bought a new 2004 silverado 3500 chassis cab. it is a 4 x 4 extended cab with locking differential with the lly duramax. i had a new dump bed put on the back and have been hauling 5 tons on a regular basis now and love the truck, the engine and the transmission(i have the manual six speed) i am trying to find an engine brake/jake brake to add on to the engine but am having some difficulty......anybody know where i can find that part??
 

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Uh oh! There goes another warranty!
 

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I do not believe you will ever find a true engine/jake brake for our engines. There are plenty of exhaust brakes which should serve your purpose well. A true engine brake would require a slave cylinder under the valves cover to open the exhaust valves before combustion takes place. This would no be a bolt-on procedure, sorry.



Jason





Cumberland, MD eh?? I know a few guys out in that area. My company built the warrior run plant. I was an engineer on that job.Edited by: Forced Induction
 

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I've been looking too. So far no one has one completed for the variable vane turbo. I had a BD on the '01 but I'm looking at the Banks this time. The unit they have for the Ford is reorted to work very well.
 

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didn't somone on this board melt their valves using an exhaust brake???
 

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I think the jury is still out on what exactly caused the melt down you're referring to, it was a member who's Dad fried a Dmax and it had an exhaust brake. I've not seen a post about what the final determination of the cause was, but GM was saying no warranty because of the exhaust brake....
 

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Has anyone heard of any news regarding an exhaust brake for the LLY?
 
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