On the way home from the last wheelin' trip, my steering became tight when I would turn either direction from straight ahead. One the steering wheel turned to a certain point, it would feel as it should. Along with that, there is very little "return to center", which causes the wandering affect when going down the road. I tore the box off, flushed the system, replaced the seal at the rag-joint input, put it all back together.....but it acted the same. Has my 34 year old steering box given up? I am doubting it is the pump due to the way it feels once you turn the wheel far enough. I have a '77 box, but the diameter of the input shaft at the rag-joint is different than my '71 box. Can I just buy the rag-joint for the '77 box and bolt it up? Anybody have any idea? Thanks in advance for the help.