I recently bought a 1978 Ford F150 4x4 with a 6.6l (400cid) backed by a 3spd automatic. I already know fuel economy is going to be abysmal, how can I boost my mpg?

45

Asked by Myles Apr 18, 2019 at 09:37 PM about the 1978 Ford F-150

Question type: Maintenance & Repair

4 Answers

45

Looking for something less expensive though

1 people found this helpful.

Install taller gears in the differentials.

1 people found this helpful.

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