I found that a fiber gear in the transmission (gearbox) had striped some of the teeth off. I had no idea where I would get parts as our place of business is 50 miles from the nearest town, and parts there are very limited.
I found Appliance Parts Pros on the internet and when I entered the name and model # of the Roper washing machine it gave me a parts break down, and I was able to find the part I needed, get it ordered and shipped in time to fix the machine within 4 days.
Had I looked on the internet and found AppliancePartsPros.com first, before taking the machine apart to determine the problem, it would have saved me hours of work, because they have a video to show you how to replace the part.