"does anyone know if 1,3,5 are connected in some way?"
just by the shifter/stick itself.
1-2, 3-4 are each on their respective shifter forks and shafts. as is 5-R.
is your shifter/stick sloppy (not the xfer shifter)? there's a teflon bushing at it's base that has been known to be the root cause with issues like this when not addressed.
http://www.marlincrawler.com/hardwar...-forward-shift
since now it has issues in purdy much every gear, you're right. need a new or remanned trans. don't bother with a rebuild on yours. just use yours as a core. cheaper.
check ebay for a popular vendor with a good rep. my guess is 3-4 hundred. wrecking yard may have one for 150 or so. but most are just guaranteed a core. so......
BTW, here's a FREE factory shop manual for your truck. it's not a cheap chilton/haynes.
http://www.ncttora.com/fsm/87-4Runne...4runner_88.pdf
parent pg,
http://www.ncttora.com/fsm/
a cheaper (chilton/haynes clone) online only manual can be found here,
http://www.autozone.com/autozone/
just sign up, plug in vehicle info, and go to "repair info"
cheers!
owner 92 toy 4x4.