2 speed rear ends

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Dec 12, 2004 | 02:01 PM

countrymike

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2 speed rear ends

will a two speed rear end improve my mpg?

Dec 12, 2004 | 02:24 PM

85e150

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No. According to some of your posts, you have an F350. You are looking at F500 or F600 2 or 2 1/2 ton for a two speed axle. The axles from those trucks will not go under your 1 ton. Way too big and heavy.

Last edited by 85e150; Dec 12, 2004 at 02:52 PM.

Dec 12, 2004 | 02:30 PM

countrymike

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so its probably not a project worth undertaking ;moving springs building a driveshaft bla,blah just to see the rear end i got was out of a 600 thanks

Dec 12, 2004 | 02:51 PM

85e150

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I edited my reply based on looking up your posts regarding what truck you have. I remember a guy 30 years ago running an F350 haveing the same problem. He had a 4 speed and was running the whee out of it on the highway.

You can look into:

-taller diff gears
-od tranny
-bolt on od for your tranny
-taller tires

Costs and limits and of course, your mileage, may vary.