the 2WD frames are different than the 4x4 frames. Primarily with the front suspension. if you only want 2WD, start with 2WD. As bill mentioned, without the front axles holding the bearings together, they come apart quickly (in about 1 mile based on experience)

The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me