If you want to do this but don’t know where to put the bb, just open the oil cap and drop it in there and drive, the bb will circulate and get lodged into place when the throttle is open.
this is old shit. its not worth doing. a blue spring upgrade, is necessary if your truck doesnt already have it or the spring is old. and its fkn 20 dollars. if you like your 6.0 not being in the shop all the time dont do this shit.