PTO - Allison Transmissions
350 Series - 1000, 2000, & 2400 Series Transmissions
Low Noise, easy installation, one wire one hose hookup 
Average Torque 250 ft lb

360 Series - MD HD World Transmissions
Low Noise, easy installation, one wire one hose hookup.                                         No backlash adjustment required
Average Torque 330 fl lb

280 & 380 Series - MD HD World Transmissions
Constant Mesh & Hotshift
Average Torque 480 ft lb