f-450 with 6.4 - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 11 (permalink) Old 02-26-2007, 06:05 PM Thread Starter
 
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f-450 with 6.4

im looking at a f-450 6.4 with 4.30 rear gears,anyone have one? id like to know how the mpg and ride are towing a load?
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post #2 of 11 (permalink) Old 02-26-2007, 09:25 PM
 
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post #3 of 11 (permalink) Old 02-26-2007, 09:33 PM
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Get it paul!!! and let me drive it when i come over

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post #4 of 11 (permalink) Old 02-27-2007, 02:18 AM Thread Starter
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Quote:
Originally Posted by circle5
Get it paul!!! and let me drive it when i come over
ok ty but im not getting a 450 looking at f-350"s now i dont want that low of gears. wish i could get a f-450 with 3.73 gears that would be sweet.
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post #5 of 11 (permalink) Old 02-27-2007, 02:28 AM
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I tried to build a normal F-350 dually and it wouldn't allow me to have 3.73s??

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post #6 of 11 (permalink) Old 02-27-2007, 03:44 AM
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f350 is great plenty. and 3.73's are perfect. hope you find what your looking for so i can check it out

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post #7 of 11 (permalink) Old 02-27-2007, 05:11 AM
 
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Remember the F450 is on truck tires, 225/70R19.5, so the 4.30 rr will give the same rpm (approximately) as the 373 with pickup tires.
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post #8 of 11 (permalink) Old 02-28-2007, 01:44 AM
 
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Quote:
Originally Posted by sacgmc
Remember the F450 is on truck tires, 225/70R19.5, so the 4.30 rr will give the same rpm (approximately) as the 373 with pickup tires.
what??? how much difference do think there is between 225 on 19.5 and 245 on 17??? no enought to drop it down to 3.73, barely to 4.10, if even that.
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post #9 of 11 (permalink) Old 02-28-2007, 03:08 AM
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225/70/R19.5 equals out to like 32.1" or something. The normal 4x4 tires are 33" tall i beleive.

2008 Red CCSB 6.4 Auto Lariat.
Stock 20's wrapped in 35x12.50R20 Toyo MT's, 3.73 gears, Nav, Backup Cam, Tailgate step, Upfitters, etc.
Mods: AFE Intake, Line-X, 20% Tint, Clear Bra, Husky Mats, Smoked Recon Mirror markers/3rd brake light, Bushwacker Pocket style flares w/ mud flaps + an aluminum Rapid Hitch (one of the best investments!)
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Last road trip-567 miles @ 20.7 mpg @ 67mpg average speed.
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post #10 of 11 (permalink) Old 02-28-2007, 03:37 AM
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the 430 is alot lower even with the tires, I had both a 250 with 373 and a 450 with 430 at the same time and the 450 was alot had alot higher rpms at the same speed.
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