Montana 3750 differences
The one change in 2013 that was significant (IMHO) was a change from a 10" "I" beam frame used prior, to a 12" "I" beam. More steel should mean more strength overall.
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2013 Montana 3750FL
2005 GMC 3500 Duramax CC/LB/Dualie AFE Intake
Mountain Master 22K
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