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Insulating the doghouse

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Insulating the doghouse
« on: September 23, 2013, 05:26:59 pm »
I did a search on insulating the cab floor and doghouse and didn't find much.  Has anyone tried lining the doghouse with hushmat or a similar sound/heat insulation material?  It's pretty noisy in the cab area especially when the tranny downshifts at high rpms.  Thanks, Mark



Re: Insulating the doghouse
« Reply #1 on: September 24, 2013, 04:03:49 pm »
Hi Mark,

This reply doesn't answer your question directly because I've not considered insulating the doghouse before. 

But, I agree that the engine noise is very loud when the tranny shifts down at high rpms.  This happens to us when the engine is trying to maintain the speed I have set (usually 55mph or less while we're towing here in California) on steep climbs.  I've found that if I just release the speed control and ease off on the gas pedal a little the tranny shifts back up and I can maintain 45mph at the lower rpms with less noise.

We're usually not in a rush to get somewhere, so that works for us.

Please let us know if you find a better solution for yourself.