I'm afraid that is not enough information to identify the appliance in question. What is needed is its exact model number ("70 series" and "110" isn't it). If you post it we can look it up to see what appliance design you're dealing with.
You can find tips for locating the model and serial number identification tag on your appliances at the following link:
- Model Number Tag Location Guide
LINK > www.appliance411.com/parts/tagsearch.cgi
** how to replace motor coupler. **
If your model is the typical Whirlpool built direct drive washer design using the motor coupler like linked below, the following instructions should be helpful.
- Direct Drive Washer Motor Coupler
LINK > www.appliance411.com/data.php?rc=1195967
- Motor Coupler Replacement
LINK > www.the-appliance-clinic.com/ddcoupler.html