Amsoil Synchromesh?
 

I have a ax-15 tranny having a little problems going into gear. I replaced the clutch master cylinder, clutch, pressure plates, release bearing,pilot bearing, flywheel surviced. Basically everything was replaced except what's in the gearbox itself. Sense I changed the master cylinder it is going into gear a lot better so far. But I'm wondering if this syncromesh fluid by amsoil will help it even more? Or make it worse . it's a 1988 jeep Cherokee. Thanks for any help!