Is this okay??? 1750rpm @ 65mph.....

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Jun 4, 2012 | 11:00 PM

#16

jethat

Senior Member

Joined: Jun 2007

Posts: 5,522

Likes: 6

From: Utah

Quote:

Originally Posted by Alfredoleffew

I'm not sure if I'm getting all the mpgs out of my 4.6l. It's al stock except my 285/75/16's, CAI, exhaust, and programmer.

While driving at highway speeds (65mph) my toms are 1750 and I'm running the stock 3.55's in my 8.8" diff. Should I stay at 3.55 or swap'em?

I have the exact same tire size and gear ration and I do about that exact same deal at 65-1750 RPM..

Jun 4, 2012 | 11:51 PM

#17

glc

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Joined: Dec 2006

Posts: 43,535

Likes: 817

From: Joplin MO

Quote:

Originally Posted by Raptor05121

How do you use this for 2WD as far as entering x-fer case numbers. I tried 0 but it still won't give me any calculations

Put a 1 in the high range box.

Jun 5, 2012 | 01:26 AM

#18

02FORD4X4

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Joined: Aug 2010

Posts: 681

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From: Rockwall, TX

What transfercase is in the 2002 f150 w/ the 5.4 and 4r70w?

Jun 5, 2012 | 01:41 AM

#19

jbrew

Technical Article Contributor

Joined: Oct 2005

Posts: 25,641

Likes: 19

From: MI

Quote:

Originally Posted by 02FORD4X4

What transfercase is in the 2002 f150 w/ the 5.4 and 4r70w?

There's a transmission forum on this site.

Jun 5, 2012 | 03:40 AM

#20

02FORD4X4

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Joined: Aug 2010

Posts: 681

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From: Rockwall, TX

I know this. I was reading the thread and was trying to figure out what rpms I should be at on the linked site. I did not feel the need to start a new thread for just this since we were already on a similar subject. No need to be a *****.