Whirlpool washer won't spin on spin cycle

My whirlpool washer makes a winding/grinding noise on the spin cycle but the drum is not spinning. I did notice a week ago the upper part of the agitator was not working but the bottom portion was. Please help! Single Dad raising 2 boys on his own. I can’t afford to call someone out.

For the agitator problem, you probably need to replace the "dogs".

http://www.appliancepartspros.com/whirlpool-agitator-dogs-80040-ap3119063.html

For the no spin, first, check the motor coupler.

http://www.appliancepartspros.com/whirlpool-whirlpool-direct-drive-285753a-ap3963893.html

Can you post a video to youtube so we can hear/see what’s going on in spin mode?

Eric