http://lmgtfy.com/?q=2008+dodge+ram+towing+capacity
ETA: from the first google link:
Ram 1500 is available with three engines: a 215-hp 3.7-liter V6; a new 310-hp 4.7-liter V8; and a 345-hp 5.7-liter Hemi V8. The 310-hp V8 replaces a 235-hp 4.7. The V6 and 4.7 V8 are available with manual or automatic transmission; the Hemi has an automatic only.
Ram's maximum towing capacity is 3400 lb with V6, 7300 with 4.7 V8, and
8750 with 5.7. ST, SXT, SLT, and top-line Laramie trims are offered. All Rams are available with rear-wheel drive or with 4-wheel drive that should not be left engaged on dry pavement. Optional for SLT and Laramie is all-wheel drive. The 4WD and AWD systems include a low-range gear for off-roading. Available safety features include ABS, antiskid system, and curtain side airbags. Also available are power-adjustable pedals, wireless cell phone link, DVD entertainment, and navigation system. Quad Cabs are available with power running boards.