Shift Kit

sounds abit involved but it'll probably make more sense once I get into.
How's adjusting the band go, should I measure the screw's position and return it to the same position?
Edit: Ok I think I found the right gasket but no clue
http://www.partsgeek.com/gbproducts...sket+1995+95&gclid=CMDG5KSPhbUCFexxQgodlngA4g

or TCI's that'll fit A 500 but I don't know if it's a steel core gasket
http://www.jegs.com/i/TCI/890/128510/10002/-1?parentProductId=746209