I bought a tag along last week when it was that low price. Since I am going to try to put this together myself. I have a few questions.

Are the bearing buddies one size? Do the actual bearings need to be replaced? Also what do I need for the 4 flat pin to a 6 round? I have looked at adapters but can it be straight wired? Does the trailer need to be checked for true-ness? Also has anyone re-did the welds?

Sorry for the stupid questions. I at least have a brother in law who can help me. He is the mechanic in the family.