Jake Brake / Pac brake question
I may be asking a dumb question but I am researching for future DP purchase. I have a gasser and have never owned a DP but have been looking at a lot of them. Is the type of supplementary braking writ...
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kgard1225 wrote:
I have the tow/ haul mode on my gasser that downshifts in a similar way to the pac brake. I am uncomfortable with the high rpms resulting even though I have been told it will not over rev. It really doesn't give me a sense of absolute control on a steep grade.
This is the function of an Allison transmission for downshifting on it's own, rather than having to doing it manually, like you would with some GM or Ford tranny's maybe.
Has nothing to do with an exhaust brake or other, which you do not have and whether made by jacobs or Pac. The common DP with an exhaust brake, just signals the Allison that a downshift is required and it will do so, once the speed becomes low enough to allow it.
