Originally Posted by mikemc53
TT is a Rockwood 8329SS (35 feet, 8850 GVWR).
If you load the TT to a reasonable weight, it will probably gross around 8,000 pounds. At average tongue weight of 12.5% of gross trailer weight, that's 1,000 pounds tongue weight.
But if your sweetheart loads the trailer to the gills so it grosses 8,500 pounds, and it just happens to have a common tongue weight of 13% of gross trailer weight, that's over 1100 pounds tongue weight. Your 1,000-pound hitch will be overloaded. You don't want to drag that trailer out of your yard with an overloaded hitch.
So you definitely want a minimum of a 1,200-pound weight rating for your WD hitch
As to the parts you can re-use from your 1000-pounds Equal-I-Zer with your 1,200-pound Equal-I-Zer, that's only the adjustable shank and ball, Those two components are about $120 or a bit more, so you can save a little by buying a new hitch that doesn't include the shank and ball.