Beleive it or not, many bushings in auto trans hardly wear to the point of needing replaced. Usually they are either damaged from broken hard parts if that was the case, and the front pump bushing where the converter rides will wear, and so will the rear bushing where the yoke slips in. Other than that, most bushings are good and really don't need many replaced. ON Hipo builds, I will replace all bushings only cuz a few thousandths might make a difference. Normally, I just replace common bushings that will come in a common bushing kit, or some expensive rebuild kits will come with common bushings. Common meaning the ones that commonly need replaced.