Need 4-speed Help

very hard to diaignose from reading all this and not seing it,,

what is going on if the car is running,in netrual foot off the clutch pedal ??

next,,jack car up all 4 wheels off the ground, on jack stands car running in netrual,foot off the clutch pedal ,,,,

next car still in the air, running put it in any forward gear,,make sure you hold the brake pedal while putting it in gear or it may free wheel . car in the air,in a forward gear let clutch pedal out some one watching to see which wheel rotates,,push in clutch ,stop wheels with brake pedal,take out of gear,try a differnt foreward gear,,,same process,, then try a reverse gear,,,

car not running battery disconnected, try car in the air,,in netrual e brake off ,,manually turn drive shaft ,is it free to turn or binding ??? put in gear try to turn the tire,,see if the motor turns over,,,

all these tests will tell whats turning and whats not,, is the rear end good or unknown ??