I had my truck on the lift today working on it. I was trying to figure out what my gear ratio is in the rear diff. I turned the tire over so that it would turn the driveshaft. I counted the rotations and it doesn't seem right. I counted something like a rear ratio of like 1.8:1 Is this possible? Someone please explain what the hell is goin on. I thought it was a stock 12 bolt from a 1974 k5 blazer. Am I wrong?