Does it benefit me to make more money my last 2 years of work before I retire as far as SS monthly benefits are concerned?

It'll help but probably not as much as you think. Retirement benefits are based on your highest 35 years, not the past 3 or 5 years like some pension plans.  In addition, earnings are adjusted for inflation so it may not help at all unless they replace lower adjusted years.  My guess is that it will result in a slightly higher amount but I wouldn't keep working just for that reason. Work because you want to work or need the money, don't do it for a few extra SS retirement dollars.