Ok so my 01 xj steers really stiff, ball joints u joints tie rods are new.noticing almost a dead spot in steering, checked intermedieate shaft and the joint is good.power steering fluid is very dirty. Removed intermedieate shaft off the box and found input shaft on the box has play.So going to be replacing pump and box, question is what gear do you guys recommend ?since we all know mopar boxes are no longer avail.