Getting 15K out of a rebuilt rack seems problematic. Are you sure it
is the rack, and not something else? I have a good used rack, new
joints and new U-joint wafers and a brand new V-box (reverser box).
Yet I notice a little slop in the rubber bushings under the dash,
inside the car, where the two prongs from the steering wheel shaft
drive the lower part. I temporarily put a couple of zip ties through
the extra space, but they will need replacing at some point. Was
giving the steering a little drift, like a worn out rack.

Anybody replaced these and can give me some tips?

Jim