SORRY! I meant the basketball fix, no really.. mine is getting tough to shift too, might be a hd shifter bushing fix too.
the green bushing i had in my hand, had a black o-ring on the bottom so i removed the o-ring now its shifts fine dont know about fifth gear, haven't tried it
After searching, found this, might help... Marlin Crawler think I will order a new bushing/seat and give it a try. also brian894x4.com shifter bushing seat replace....