Wanting to lower my truck - Ford Powerstroke Diesel Forum
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post #1 of 19 Old 03-07-2008, 09:18 PM Thread Starter
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Wanting to lower my truck

Well with the way fuel is going I have decided to do some things to help my truck get better mileage. I have noticed my truck sits about 2 inchs higher than other superdutys, it has 3 leafs up front and I believe 5 in the back. I am going to 235/85/16 and I know that they will look funny the way it sits now (my 285/75/16s look perfect) so what would I need to do to lower my truck atleast back to stock? What about lowering it 2 inches lower than stock? How hard would this be and does anyone make a kit?

early 99 F250 4" MBRP, DIY intake, TW Chip, Built tranny from Fleece Performance Diesel, HPX line
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post #2 of 19 Old 03-07-2008, 09:28 PM
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i would like to lower my truck also. i noticed theres a member on here by the name of lowstroke and his truck is lowered with djm lowering kit. maybe he can help us.

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post #3 of 19 Old 03-07-2008, 10:31 PM Thread Starter
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I don't imagine it will pay off short term, but if I was able to get 3-4mpg better and with the way diesel keeps going up it could make a big difference. I can only manage around 15 now. Anything has to help...

early 99 F250 4" MBRP, DIY intake, TW Chip, Built tranny from Fleece Performance Diesel, HPX line
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post #4 of 19 Old 03-07-2008, 11:16 PM
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Get a de-tuner chip to decrease power. There was an article about a guy who took a 2000 7.3 6 speed and put a 3.08 diff a detuner and some other stuff that got 26MPG.
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post #5 of 19 Old 03-07-2008, 11:20 PM
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I could be wrong, but I don't think just lowering it would get better fuel mileage. The small tires will help, but I don't see you getting 3-4 better. I think a good econo tune on a SCT would probably get you there. Good Luck though...

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post #6 of 19 Old 03-07-2008, 11:39 PM Thread Starter
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I already have a TW chip with the economy tune, but haven't had a chance to really try it yet. I here many people say they can get 18-20 mpg. They are almost all running a stock setup. I think the weight difference, rolling resistance difference, and better airodynamics could increase mpg quite a bit. My truck is a 4wd though. Maybe I need to just do something custom up and post the results, there is a guy on powerstrokenation claiming 24-26mpg with a 6sp lowered 2wd truck on 235/85/16's...

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post #7 of 19 Old 03-08-2008, 06:38 AM
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2 wheel drive makes a big difference and a 6 speed helps too. have you tried keepin it under 2000rpm's? try doin under 65 and that should help you out also.

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post #8 of 19 Old 03-08-2008, 06:44 AM Thread Starter
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I realize he has a big advantage over me with the 2 wheel drive and a 6sp, but he is getting 9-11 mpg more than me. I really don't think there should be that big of difference. By reducing some drag there could be some possible mileage changes, I am going to have to pay my local spring shop a visit and see what they can do for me

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post #9 of 19 Old 03-08-2008, 06:46 AM
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Quote:
Originally Posted by 2005F250 View Post
Get a de-tuner chip to decrease power. There was an article about a guy who took a 2000 7.3 6 speed and put a 3.08 diff a detuner and some other stuff that got 26MPG.
I bet 100% of his economy came from the 3.08's instead of the detuner, could be wrong though.

I want a two speed differential, lol. One with 3.08's for hwy speeds and one with 3.73 or 4.10's for towing/in town driving.

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post #10 of 19 Old 03-08-2008, 06:51 AM Thread Starter
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LoL that would be nice, one of the gearvendors units looks good but have you seen the price...

early 99 F250 4" MBRP, DIY intake, TW Chip, Built tranny from Fleece Performance Diesel, HPX line
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