From reading the letter,I gather it wasn't welded solid.
Both sides of each pivot perch have to be welded solid all the way around them.There is a lot of stress,strain,torque in this area,solid welding is crucial,no short cuts can be taken.
I think you should take him up on the $100 refund and chalk it up as a learning experience.
I would take the drive shaft back to the maker and have him check it out.Tell him what happened,he may give you a break.
Did it break both u-joints,how is the front slip yoke ?
Check your gas tank as well,it's only a few inches from the drive shaft.
Tim
1951 3100 Chevrolet1951 Chevrolet Suburban CarryallImage"A house is built with boards and beams. A home is built with love and dreams."
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