Target RPM for cruise speed.
Trying to decide what rear end ratio to choose and maybe this is the wrong place to ask, but... Looking at specs for my 90 2.3, peak TQ is at 2600 rpm. Would that be a good target rpm for my desired cruise speed to maintain best mpg? I'm changing from my 3.08 because I can't get my boat up my gravel drive. I figured any change would be an improvement but I don't want to overdue it. @ 70 mph 4.10 would put me at 2842 rpm and 3.73 would be at 2586 rpm. Opinions? Thanks!
90 Reg Cab 2WD 4Cyl
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