Will the procedure change if all i do is install the suregrip only? Not messing with the pinion? And I want to thank you all very much! My Dad is usually my guide and we are geographically separated
Not messing with the pinion is a good idea, I had not thought about.
See replicaracer43's post above.
I would still mark the caps, some say you don't need too, some say to do it. I err on the side of caution I guess. As r43 said above take a few measurements with the dial indicator, backlash normally is 8-10 thousandths.
When you put it back together bring the adjuster in toward the pinion and get your backlash back where it was as closely as you can.