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Re: Rpm question
Just for giggles you should download a free gps speed app to your phone and check the speedometer against it. Mine reads 45mph at 60mph actual speed. Assuming both the tach and speedo are accurate you have 4.56 gears in the rear according to the TREMEC gear calculator.
Obviously lower rpms will equal less wear on the engine, lower noise, and to a certain extent better fuel economy. Since it’s your daily changing the rear gears may be something you want to look into unless you need those stump pulling gears. Fyi, swapping to 3.73 will drop the rpms to about 2600 @ 60mph, 3.07 will be about 2100 @ 60mph with your tire size.
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1967 C10 LWB 250 6cyl 3ott Panaramic cab “Layla”
1967 Camaro 327 ‘glide cruiser “Bailey”
Last edited by Overdriven; 11-11-2019 at 10:56 AM.
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