Features
10-bolt mounting pattern fits Allison automatic transmissions
Constant mesh shift type, supports continuous operation with 30% de-rating
1-1/4" round output shaft with keyway
Intermittent torque: 301-400 lb-ft range (335 lb-ft series rating, check application pages for actual value)
Shaft power: 32 HP at 500 RPM, 64 HP at 1,000 RPM
360-degree rotatable flanges and SuperTorque gear option available within the 267 Series
Wet spline or greaseable shaft option to extend PTO and pump shaft service life
Tech Specs
- Intermittent Torque: 301-400 lb-ft (335 lb-ft series-rated, check application pages for actual torque rating)
- Mounting Type: 10-Bolt
- Shift Type: Constant Mesh
- Transmission Manufacturer: Allison
- Output Shaft Type: 1-1/4" Round with Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 32 HP at 500 RPM, 64 HP at 1,000 RPM (24 kW at 500 RPM, 48 kW at 1,000 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information

The Chelsea 267 Series is engineered in collaboration with Allison specifically for Allison World Transmissions. The 10-bolt pattern provides a tighter seal than a 6-bolt mounting, and the constant mesh design makes the 267 Series well-suited for load-sensing and variable displacement piston pump applications. Common applications include snow plow trucks, small refuse trucks, and yard jockey trucks. The SuperTorque option adds up to 20% more torque capacity over a standard 267 Series unit. Five speed ratios and multiple output configurations are available across the series. Contact Pro Gear and Transmission to confirm the correct ratio and output configuration for your application.
- MuncieA30-A1007-MX1PBPXNot listed online. Call 877-776-4600 or request a quote.
Matched by full model number. Check the mounting, input gear and output against the unit you are replacing before you order. Look up any Chelsea, Muncie or Bezares number on our Muncie to Chelsea PTO cross reference.

