Help- quick general questions f150
Elder User
Joined: Apr 2003
Posts: 649
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From: Covington, Tn
There should be a coded tg on the dif cover that should have it on it.
The tranny is considered an over drive not a 5 speed although everyone refers to them as 5 speeds. A true 5 speed would only have a final drive ratio od 1:1
it will be #: ## like 4:11 or 3:55
The tranny is considered an over drive not a 5 speed although everyone refers to them as 5 speeds. A true 5 speed would only have a final drive ratio od 1:1
it will be #: ## like 4:11 or 3:55
Last edited by alabamabuddog; Nov 13, 2005 at 09:56 PM.
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Junior User
Joined: Sep 2005
Posts: 50
Likes: 0
OK i found it, code 18, for 3:08.
Now, what does having this axle do in terms of fuel economy?The trucks got a 5spd, 4.9 I6, 54,000 miles, kept up regularly. Its got the 3.08. What kind of fuel economy should I expect?
Now, what does having this axle do in terms of fuel economy?The trucks got a 5spd, 4.9 I6, 54,000 miles, kept up regularly. Its got the 3.08. What kind of fuel economy should I expect?
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Junior User
Joined: Sep 2005
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Sounds ok, i was hoping for 18-20 highway. On my last tank of gas, i averaged 10mpg, because my driving consists of a 5 minute warmup in early freezing morning and then driving 1.5 miles in tight traffic, intersections. My guess is it would be ALOT better on the highway on a long trip.
Postmaster
Joined: Aug 2004
Posts: 2,908
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From: West Mansfield, Ohio
I'd say dale is pretty much dead on. You are driving a giant brick down the road. You're not gonna get 20's in the MPG's unless you have a 50 MPH tail wind going down hill. Just aint gonna happen my friend
. Sounds like you got yourself a nice setup otherwise. That ol 300 should last for at least 200K miles more.
. Sounds like you got yourself a nice setup otherwise. That ol 300 should last for at least 200K miles more.
Post Fiend
Joined: May 2004
Posts: 11,289
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From: Lakewood, Ohio
Originally Posted by dale gribble
I would say 13-15 city and 16-18 highway on that?
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Senior User
Joined: Feb 2005
Posts: 292
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From: Akron, OH
Originally Posted by handyman43358
I'd say dale is pretty much dead on. You are driving a giant brick down the road. You're not gonna get 20's in the MPG's unless you have a 50 MPH tail wind going down hill. Just aint gonna happen my friend. Sounds like you got yourself a nice setup otherwise. That ol 300 should last for at least 200K miles more.
. Sounds like you got yourself a nice setup otherwise. That ol 300 should last for at least 200K miles more. It is at about 1700RPM @ 70MPH. Never usually rev it past 2000.
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Junior User
Joined: Sep 2005
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Ok, folks, checked it again and I'm getting 14.86mpg, about 95% highway. 3 minute warmup time in th morning, running in freezing weather, only for 1.5 miles in and out of tight traffic.Cold engine. Im happy!
Post Fiend
Joined: Mar 2002
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From: Bonita Springs FL
I get about 16 on the highway in my 1991, but it has a 3.55 rear end.
I had a 1990 F-150 (see gallery) that had a 3.08 gear, 2wd, 4.9L, and five speed and I got 19-20 on the highway. I was pretty happy with that.
A transmission is a 5 speed if it has five forward gears, regardless of whether the final gear is overdrive or direct drive.
I had a 1990 F-150 (see gallery) that had a 3.08 gear, 2wd, 4.9L, and five speed and I got 19-20 on the highway. I was pretty happy with that.
A transmission is a 5 speed if it has five forward gears, regardless of whether the final gear is overdrive or direct drive.