I know there's really no way to tell without opening it back up, but can anybody give me an educated guess on what rear end gear ratio I have? It's a 10-bolt GM rear end with a NP 241-C transfer case and 700-r4 in a 1992 k1500 extended cab. It's supposed to have 3.42's in it, but the rear end was clearly swapped out along with everything else from bumper to bumper. I tried looking up the numbers I got off of the axle when I changed the pumpkin gasket, but didn't come up with anything. All I know for sure is with the speedo pegged out at 90mph, it's only running around 2500rpm.