The bushes for 2wd and 4x4 fit in the exact same way, so that’s never going to be an issue. I’ve heard before there would be difference in OE Cosworth bushes and OE normal bushes, where the Cosworth ones would be stiffer. But in reality the OE Ford bushes are crap anyway. The bushes you got seem like heavy duty items which are probably a lot better than the OE ones. Personally I only fit polyurethane bushes to TCA/ARB connection.