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Old 02-17-2015, 04:35 PM  
billr
Senior Member
 
Join Date: Jan 2006
Location: Ontario Canada
Posts: 857
We used to tow with an older GMC Dually, was a 13K fifth wheel. About 2400lb pin. No issues except over heating and lack of umph on hills. Slowed down to 30 mph on not so steep grades... It had a 454 no diesel. 410 gear. The same tranny, but is was always maintained well. A must on those.

Your Gross capacity on the truck will be over with the pin as Joe mentioned.

Short local trips might be fine, long hauls might need more thought.
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