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HI All,

I was wondering if an exhauset brake can work with auto trans without lockup (have a DTT89TC so it's a little tighter and lots of tranny cooling (B&M finned alum pan adds 2 qts and a 40K rated Tru Cool tranny cooler in addition to whatever the factory has on it)....I realize that it is not as good as having a lock up tranny or stick but isn't some engine braking better than none if I just watch the trans temp guage?.....Just curious but I have heard that Jake Brakes are often rated as to their retarding HP equivalent....How much retarding HP does an exhaust brake offer?
Thanks for your help.

Andrew

 

put your hand out the window it will work better

 

What he said. Exhaust brakes with non-lockup converters are pretty much useless.