Allison Transmission Questions We hate to overburden the Allisonman but... We're in the process of finalizing a hauler to pull our soon2own 33' 5er. We'll be purchasing an International 4400LP DT570 engine 310HP 950ft/lbs. torque. We want an Allison 6sp. tranny but we're confused as to which model to select. The International dealer recommends the Allison 3000HS, but I've read that the Allison 3200TRV is more approriate for hauling a 5er. Any suggestions would be greatly appreciated.