Can you put Allison transmission in a ram 2500 diesel truck?
No, you cannot directly put an Allison transmission in a Ram 2500 diesel truck. The Ram 2500 uses a different transmission mounting system, different control systems, and likely different input/output shaft configurations compared to Allison's transmissions. It would require extensive and likely impossible custom fabrication to make such a swap work. The cost and engineering challenges involved would far outweigh any potential benefits.