To be quite honest, a modern truck with factory mufflers on it won't make much sound difference when the jake is on, when heard from outside the truck.
It's the guys running unmuffled that create all the noise and fury.
Most of the towns I've seen with no-jake signs posted state "No Unmuffled Exhaust Brakes". But, I have been in a few that ban the use of jakes altogether.
I'm sure you've heard it before, just didn't realize it.
Check out this link to hear it.
http://www.youtube.com/watch?v=UT4sHf1gYLI
Give truckers a break/A Letter
Discussion in 'Canadian Truckers Forum' started by Cybergal, Oct 27, 2007.
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But no one came running in and asked "Did you hear my Jake Break?" So I didn't have a clue.