thinking about going back to stock gears - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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post #1 of 12 Old 03-18-2010, 05:43 PM Thread Starter
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thinking about going back to stock gears

thinking about going back to the 3.73 from the 4.56. just doesnt fell as fast and the gas milage sucks? what do yall think


04 f350
03 turbo sct with loone tune
arp studs Sinister Diesel EGR Delete
ran a 8.78 in 1/8
full suncoast trans with billet converter and input shaft
4" ss turbo back bullydog 4" to 6" mrbp tip
8" procomp ,procomp tracion bars on 20x12 35"
3.73 gears and trutrac
volant intake
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post #2 of 12 Old 03-18-2010, 06:39 PM
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I think you should sell them to me really cheap...

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post #3 of 12 Old 03-18-2010, 09:16 PM
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This is interesting as I'm running 3:73 on 37's with 8" lift and was considering a gear change myself. I tow a toyhauler weighing in at roughly 12K fully loaded. Although I was looking at 4:30's which would put me very close to stock gearing I've decided to go with a custom tune from Innovative Diesel and leave the 3:73. What kind of mileage are you getting? Running empty, I'm only getting 12.5-13 mpg. Eric at Innovative Diesel believes I can up that 2-3mpg w/ SCT and the custom tunes....
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post #4 of 12 Old 03-18-2010, 09:43 PM
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Your transmission is going to hate you. Keep the gears.

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post #5 of 12 Old 03-18-2010, 09:58 PM
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Man I have 4.11's in my dually. I hate em. O', thinking about switching to 3.73's. everyone i talk to says they pull just as good. I have 4.89 im my F450 work truck... talk about slow, and my F350 pulls better (guess it cause i have some parts on the 350)

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post #6 of 12 Old 03-19-2010, 01:52 AM Thread Starter
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I have a built tranny and i dont tow anythong heavier than 4000 lbs.i was get close to 15 to 18 mpg.now its like 10.


04 f350
03 turbo sct with loone tune
arp studs Sinister Diesel EGR Delete
ran a 8.78 in 1/8
full suncoast trans with billet converter and input shaft
4" ss turbo back bullydog 4" to 6" mrbp tip
8" procomp ,procomp tracion bars on 20x12 35"
3.73 gears and trutrac
volant intake
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post #7 of 12 Old 03-19-2010, 02:13 AM Thread Starter
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I have a built tranny and i dont tow anythong heavier than 4000 lbs.i was get close to 15 to 18 mpg.now its like 10.


04 f350
03 turbo sct with loone tune
arp studs Sinister Diesel EGR Delete
ran a 8.78 in 1/8
full suncoast trans with billet converter and input shaft
4" ss turbo back bullydog 4" to 6" mrbp tip
8" procomp ,procomp tracion bars on 20x12 35"
3.73 gears and trutrac
volant intake
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post #8 of 12 Old 03-19-2010, 02:19 AM
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If you don't tow...than I would have 3.73's in my truck. Why run these low gear's if your not towing...but it is less strain on your trany with the oversized tires you have on your truck....

2006 F-350, Lariat, DRW, 4X4, TowBoss 4.30, 100 gal fuel capacity
Logged more than 32,000 "hard working" miles towing RV..23,465 GVW.



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post #9 of 12 Old 03-19-2010, 03:29 AM Thread Starter
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Charile front gears are still in box .i mite make u a good deal.


04 f350
03 turbo sct with loone tune
arp studs Sinister Diesel EGR Delete
ran a 8.78 in 1/8
full suncoast trans with billet converter and input shaft
4" ss turbo back bullydog 4" to 6" mrbp tip
8" procomp ,procomp tracion bars on 20x12 35"
3.73 gears and trutrac
volant intake
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post #10 of 12 Old 03-19-2010, 03:30 AM
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Im in just the opposite boat as you...I have 3.73's and feel like my truck is a slug because of it...Im probably gonna go to about 4.30's...

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