May 21 0 First Time Back Crack Adjustment. Hear the Loud Relief. Karen. Chiropractic Upland Claremont Cucamonga Posted by Admin Suffering from back pain for years, Karen and her husband wanted help. They had never seen a chiropractor, so they were scared about the adjustment. Watch Karen’s reaction at the end to see if it helped her. Watch our other adjustment videos on YouTube: http://bit.ly/2BslhMO