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I have a 97 4.0 tj automatic. I'm running 3,000 Roma at 70 mph. 4 inch lift, 305-70-16's, same as 33's. I believe! I don't see a tab on my diff. I can mark the driveshaft and Jack it up and spend the tires and count the ds turns. But just wanted to see if y'all could somewhat guess. The jeep has plenty of power and accelerates perfect. I just would like my rpms down alitlle for the interstate driving. Planning on 35's soon"MAYBE" Im not trusting my Dana 35 with the 35's. Remember I'm currently running 305-70-16's/////33's. Thanks wavey!!!!!