Entering the market with a 40-foot fifth wheel trailer with 3 slide-out sections, recreational vehicle brand Big Dog first appeared in the 2008 model year. Manufactured under Sunnybrook, a smaller ...

Entering the market with a 40-foot fifth wheel trailer with 3 slide-out sections, recreational vehicle brand Big Dog first appeared in the 2008 model year. Manufactured under Sunnybrook, a smaller ...