I can tell two things about you M01028. First your young, second you where never in the military driving one of these rigs. Me, I have been a heavy diesel mechanic for over 35yrs plus my 4yrs in the Marines. I know what these vehicles are capable of and I know there short-comings. Also going to trade school and 4yrs apprenticeship I learned a lot about steering geometry, wheel base, axle turning radius , and a number of other interesting things about vehicles. All this to say, driving a vehicle that has been extremely modified from it's factory settings without proper research only leads to trouble. I sure your one of the offroad crowd that finds owning a military vehicle to be super keen ! That in itself is fine, but these vehicles cannot be modified like your jeep or bronco without consequences. Your statement that these are extremely heavy trucks made me laugh. You have never driven a 100,000lbs truck down the road have you ? That is a heavy truck. These deuces are a light to medium truck but still can cause a lot of trouble if modified incorrectly. You said "if done correctly" , well who has done it correctly ? Where is the documentation on it ? Just because someone has done once or twice does not mean it was done right. Or that it is safe to drive. Recovry4X4 said it very well that "locked tandem axles does effect front tire wear" . In a 4X4 vehicle you have a total different dynamic then a 3 axle vehicle. That center axle really effects the steering and stability of the vehicle. Now you cannot argue that a 4X4 rig that has monster tires under it doesn't effect the handling of the vehicle right ? Well shortening a 3 axle vehicle will also have a serious effect. I would sign off on this modification if I could see the test results of a standard "40mph collision avoidance test" . That would tell me if the vehicle has the stable steering and handling abilities to be safe on the public roads. But until that time I will continue to say that it is unsafe. So now the ball is in your court to "prove" me wrong, not just throw mud at me.