Hi ! Welcome to IRV2! We're sure glad you joined the gang!
I wouldn't buy that much 5er for that truck. It would be fine on level roads but it would be really hard on the tranny pulling it in the mountains. You really need a 3/4 ton diesel truck. JMHO
Good luck, happy trails, and God bless!
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD