JDcrawlers Messageboard

I have a 1976 550 straight with a broken crank can you swap a 4045T in place of the 4276T

It is a straight 550 no suffix letter. Is there a manual on cd available, have been unable to find one on ebay paper or otherwise. I see no removable plates or access covers to internally disconnect engine from tyranny, but am leary of just removing bellhousing bolt and attempting to get engine out

I bought a none running 550 with 4276 engine have found it has broken crank. Would like to know is there anything at flywheel that have to unhook like torque converter or does it have a spline and I just unbolt at bellhousing and pull engine. New to dozer repair need all the help can get, thank you