72-76 A body Wiper Pivots

Last time wiper subject came up, I saw several used assemblies available on ebay. Even if the pivots do interchange (and likely do) the length of the linkage arms would be different for the various body types.
The linkage attach changed over the years. my 67 has same bronze bushings as earlier A. 68 got a black plastic bushing. Somewhere around 73 it changed again to a off white nylon ball socket.
Pivot assemblies themselves... From E or C or FMJ, may be just as worn as what you'll find for your year model of A-body. Where the donor was is THE controlling factor. Anywhere close to west coast like Seattle has to be well worn, while Arizona, Nevada is less worn.
Bottom line, Buy used pivots pulled from correct year model and the reseal kits for them. Hope this helps