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I fill up weekly, I can't remember the last time I ran out of gas and had to fill it on the side of the road. I do know It was not this decade.

Can somebody explain to me why I want to walk to the passanger side of a vehicle every time I put gas in it? Is there a logical explanation for moving the fuel side from driver to passanger side. Was it so the OL will pump the gas? Was it that we are too fat and Ford thinks we need the...

How do you verify results? I have a Harley that I have 100+ pulls on a dyno. I was thinking about how you would dyno a automatic trans truck. It there a way to dissable the downshift so you can get a torque curve for an entire RPM range? I would suspect that you would not run it in low gear as...

okay good I am not crazy. Is there a noticable difference. from a 4.10 to a 3.91. I would think it would be a little slugish maybe a 150-200 rpm change. more of the concern would be the spedo error.

Excuse my lack uf understanding but how does the tire size alter the gear ratio?