Chelsea Power Shift PTOs deliver clash-free shifts whether the vehicle is
stationary or on the move. Constant mesh input gears and specially designed
clutch packs make these PTOs ideal for applications that demand frequent PTO
shifting.
The 251 Chelsea PTO series is a hydraulically operated (electric-over-
hydraulic) and is used with the 2002 and newer Allison "1000" series
transmissions used in the Chevrolet/GMC C/K30 chassis.
- Output 122% of engine speed
- Output SAE "A" 2 or 4 bolt 5/8"-9 tooth splined shaft - engine rotation
- Right (Drivers) side of transmission installation (C/K30)
- Includes stud kit
- Chevrolet/GMC application includes 2002 to current C/K30 with 1000 series
- Chevrolet/GMC application includes 2003 to current 45/55/6500 series chassis
with 1000, 2000, 2200, or 2400 series Allison transmission
- OPTIONAL Hydraulic Pump #P20C694JEAB10-95 shown in photo.
- An OPTIONAL lube "T" fitting is REQUIRED in the oil return cooling line to
supply low pressure oil to the idler shaft of the PTO. Part number 378840 "T"
fitting is for the transmission model 1000 with SAE #3 bell housing. Part
number 378970 for transmission models 1000/2000/2400 with the SAE #2 bell
housing. The high pressure port requires a 7/16-20 O-ring boss fitting