I don't have a MH but my truck has TH. If the trailer is hooked up The TH is on and the tyranny is kept in 5 gear. It changes the tyranny shift patterns and has nothing to do with the brakes.
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2011 Keystone Sprinter 323BHS. Retired Master Electrician. All Motor Homes are RV's. All RV's are not Motor Homes.
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