327, my bad, I thought you were referring to the little plunger in the brake light switch.
Scott, both my '78 and '83 have power brakes and a return spring on the pedal. The switch is a bear to get to, and probably harder for a tall guy.
When I adjusted the switch on my 5, I bent the tab on the pedal arm, I wedged a 3/8" extension, or a big screwdriver between the firewall and the tab and pushed the pedal down. I did this procedure a couple times bending it a little each time , so as not to go to far.
1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1980 CJ5 trail Jeep.
1989 YJ the CJ to YJ.