Probably a problem with the transmission "valve body". Have it checked out with a transmission specialist.
it needs a new transmission
countershaft bearing could be problem
only thing i know that will make brkes grind, is worn out brakesmaybe have em checked at a different mechanic
Probably the reverse switch is bad or out of alignment. You'll need a manual to find the reverse switch. It'll be somewhere on the shifter, on the transmission, or possibly somewhere in between.
I wonder if it might be the starter motor not fully disengaging and as soon as the flywheel turns, it's kicking it back.
Brakes or wheel bearings. Have it looked into ASAP.
You can try disconnecting the battery, leaving it off for 5 or more minutes. If that doesn't work, check the wire connecters on the transfer case. if you havent already, try switching when you are in neutral then putting it in reverse when it is in 2 wheel drive
Short circuit somewhere in the reverse-light or even the reverse switch itself. Other causes are also possible.
Hey K==It will start grinding in reverse and hard to shift in foreward gears. GoodluckJoe
I have a 1992 Chevy berretta 3.1 V6 and when it is in park and reverse and neutral it sounds like there is a grinding noise right below the shifter I know that the linkage needs adjusting any ideas
Internal trans problem.
This question doesn't really have enough information. I'll assume that you are talking about a DC circuit where switching of the poles would mean to reverse the polarity of the circuit, ie switching of the poles would mean to switch the positive and negative leads of the circuit. This term is also associated with motors. Switching of the poles in motors is what causes the rotation of the armature. The brushes of the motor induce a current into the armature, as the armature rotates the brushes come in contact with other bars on the armature thus "switching of the poles".