The 2011 Ram 3500 models feature two axles with three axle ratios (3.42, 3.73 and 4.10) and 17-in. wheels, while Ram 4500/5500 models have one axle with three axle ratios (4.10, 4.44 and 4.88 ...

Ram’s 3500 was the first diesel pickup to reach the ... backed by the heavy-duty Aisin AS69RC transmission. The two-wheel-drive regular cab dualie is the only one that hits that rating (right ...