Gear Lube Stabilizer

[fixkick]

Hello,

Got a 96 Tracker 2WD 5 speed. 
Currently running Penzoil Synchromesh in my transmission. The transmission and clutch were recently rebuilt. Clutch cable is new, and so are the plastic seals under the shifter. 
I feel balking and difficulty shifting every now and then, especially in 2nd, when downshifting. 

i was wondering if anyone has  tried adding oil stabilizer in their gear lube? Would it be safe to use? I'm thinking about using the Lucas oil stabilizer, there are two of them:
Lucas Transmission Fix, it says for smaller transmissions to use 12oz
https://lucasoil.com/products/problem-so...ission-fix

There is also the regular Lucas Heavy Duty Oil Stabilizer, which says it can also be used in manual transmissions, says to add 25% to light manual transmissions:
https://lucasoil.com/products/engine-oil...stabilizer



Think its worth trying out ?

can't do snake oil me .
but balks when?

 only 3 to 2, (guessing this)
2 to 1.
and never grinds into reverse?

if only one gear balks (miles on car are what, 100k 300k>?)
then that synchro ring is worn out and 3 to 2 down shift failure is #2 synchro, warn out.
anything that makes the lube more slipper, will make it worse, for sure real SYN LUBE.

the inner ring has groves when those are gone and looks smooth the ring is now end of life,  all you can do is learn to double clutch it, like we did with crash box days.

or go to GL5 and the thicker oil may work better. and old box will be sensitive to GL brands.

also the speed you are driving and if faster, when downshifting, will put more demand the that 2nd gear ring, do the huge gear speed differences.,
the ring is a speed matching device that lets 2nd gear dogs, dog in and not balk,  (gears dont really move, only the dog locks do, and this is a constant mesh box.
but the ring is it, it must grab the ring clutch cone or it will BALK ever time unless going slower.

how that helps, good luck to you!