I would be interested in knowing the force it takes to overcome the plastic bond holding the pinion housing to the rack tube without heat being added. I have a custom crossmember in my car that supports the rack around the rack tube. The force of the pinion on the rack will try to separate the pinion housing from the rack tube. I have ran it this way for several seasons of autocross and two seasons of track days without issue, but I think I will add an end support to keep the pinion housing attached.
crossmember.pdf