Description
Allison transmission assembly part# 29563083 priced without a core deposit. Reman Allison Exchange Transmission with 2 year unlimited mile warranty. Buyer pays all freight for unit purchase and core deposit. Local pickup and free delivery within 100 miles is available. If within 300 miles, please call to see if we can still deliver for free! If we deliver this unit, we include free reflash of your TCM. Price does not include fully refundable core deposit. Please see our policies page for core criteria and warranty details.
Need more details? Let us know what you need.
Images are for representational purposes only.
Signs your 29563083 transmission may need replacement
- Transmission slipping or delayed gear engagement
- Loss of power under load
- Overheating or fluid discoloration
- Consistent limp mode activation
- Diagnostic codes related to pressure control or shift failure
Pre-installation checklist
- Verify vehicle compatibility with 5th Gen Allison 1000 Series
- Confirm PTO requirements
- Inspect transmission cooler and flush lines
- Update TCM programming to match the new transmission (if reusing original TCM)
- Use OEM-recommended fluids only (TES-295 or TES-668 approved)
Diagnostic codes associated with transmission failure
- P0700 – Transmission Control System Malfunction
- P0715 – Input/Turbine Speed Sensor Circuit Malfunction
- P0776 – Pressure Control Solenoid B Stuck Off
- P0871 – Transmission Fluid Pressure Sensor/Switch C Circuit Range/Performance
- P0894 – Transmission Component Slipping
People Also Ask (FAQs)
1. What does a 29563083 transmission assembly include?
This remanufactured unit includes all key internal components, a rebuilt torque converter, and a resealed housing, fully tested to OE standards. Shift pad and TCM not included.
2. Do I need to reprogram anything after install?
Yes. Your TCM may need to be reset or reprogrammed to sync with the replacement transmission. This ensures proper gear selection and performance.
3. How can I tell if the transmission is the issue and not the TCM?
If you’ve already replaced or bench-tested the TCM and still see symptoms like slipping, no engagement, or range inhibit, it may point to internal failure. We can help you troubleshoot.
4. Is the transmission plug-and-play?
The transmission is a direct physical replacement, but proper programming and setup of the TCM is required for correct operation.
5. What’s your warranty policy?
We offer a 6-month limited warranty and a refundable core charge, provided the returned core is complete and rebuildable. Read our warranty and core deposit policies for more details.
Need help confirming compatibility or placing an order?
Reaction Force offers:
- Free phone support for diagnostics and installation
- VIN verification and compatibility checks
- Flexible core return options
📞 Call Reaction Force LLC (503) 862-6322 today.

