Low gear oil level might do that, or contaminated or dirty gear oil. Get the tranny hot by a 1/2 hour drive and change the oil out for fresh. You may have to do this a couple of times to get all the "badness" out of the tranny. If it doesn't fix it, assume the input shaft bearing has failed, which is not good.
Manual transmission is when you use the shift stick to shift to different gears in a car instead of driving without shifting gears,which is auto transmission.
It's a transmission where the gears do not change themselves, but have to be changed with a gear shift and a clutch.
You have not pressed the Clutch peddle to change the gears!!
Manual transmission is a stick shift. You have to manually change the gears using the shifter and the clutch.
It matters if you have atuomatic or manual transmission. In an automatic car the gears shift on it's own. In an manual car you shift buy pushing the clutch and then shift from 1st gear to 2 gear.
You have to shift gears in all of them, so you'd call them "manual," but in 1969 you could get an "autostick" transmission that had an automatic clutch connected to a manual transmission.
it could be the shift linkage being that both gears over there wont work
There are many reasons why a car is hard to shift when there is a manual transmission. The clutch is one of the main reasons why a car is not shifting properly. Another reason could be that the transmission is low on fluid.
Your truck may not shift gears because the transmission sensor is damaged or broken. It also may not shift gears because the transmission or linkage is damaged.
The transmission allows you to shift gears.
did the clutch cable come off? (if its a manual) that or there is a problem with the transmission.
I am unsure what you mean by your question.There is either an analog hydraulic computer inside the transmission called a valve body that makes the decisions or a Electronic computer that directs the transmissionORYour teacher could be looking for "The manual Valve" or "Shift valve" or "Range Valve" But at the end of the day the driver moving the lever shifts the gears.