2
Welding is not really an option. There is a bronze bearing sleeve inside that might not take to kindly to that.
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Keep in mind that not only does the tube have to move but the axle shaft has to turn freely inside it. You can clamp it up and it might work but if you are going to be puling an 800 lb roller its probably going to get worse regardless. The clamp will keep the crack closed but the torque from pulling a heavy load will still twist the axle and the crack will grow.
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Best bet for easy repair is find another working gear box. A new or refurbished axle tube - if you can find one -will most likely cost almost as much as the entire used transmission and its a not a simple thing to replace it in any case. I have one in the garage waiting to be rebuilt right now...
Keep in mind that not only does the tube have to move but the axle shaft has to turn freely inside it. You can clamp it up and it might work but if you are going to be puling an 800 lb roller its probably going to get worse regardless. The clamp will keep the crack closed but the torque from pulling a heavy load will still twist the axle and the crack will grow.
Best bet for easy repair is find another working gear box. A new or refurbished axle tube - if you can find one -will most likely cost almost as much as the entire used transmission and its a not a simple thing to replace it in any case. I have one in the garage waiting to be rebuilt right now...
