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Just sharing my experience after moving to 37s on a non-sas Black Diamond. Someone recently posted a thread about an unexpected gas mileage increase after moving to 37s. I believe they had a Wildtrack? Anyway, I recently up'd my '24 non-sas BD to 37 K02s from 315 takeoff. I'm now seeing on average a 2+ mpg increase at highway speeds. Speed correction via Forscan is spot on. I'm running a Bilstein 2" coilover lift with a 3/4 body lift. Currently averaging 19-20mpg at 71-72mph (cruise control). At 75-77 I averaged 18-19mpg. Hardtop/Soft top no difference, if that matters. The truck is always in the right gear with zero hunting. Acceleration and torque not an issue. I don't wheel the truck, just lot's of long distance driving and some overlanding photography.
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