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Sep 20, 2007 | 05:27 PM

#16

NORTHLAND06

Senior User

Joined: Jun 2006

Posts: 248

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From: IOWA

Quote:

Originally Posted by jasfaa

Northland, nice heads up on the towing differences per the manual. I think it is a bunch of BS that the auto can tow more than a manual but it definitely states it. I had heard the 450's were tuned differently than the 350's and I also noticed the higher gears are not offered in the manual transmission. It also only pertains to fifth wheel towing and not conventional towing.

I think salesperson at the dealer told that the F450 with 4.88 rear end are 50ft pounds of torque less than the 4.3 rear ends ones. You can quote me on that, because I am not sure of that 100%.

Sep 20, 2007 | 05:53 PM

#17

1968gtcs

Senior User

Joined: Jan 2006

Posts: 204

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From: California

Quote:

Originally Posted by NORTHLAND06

I think salesperson at the dealer told that the F450 with 4.88 rear end are 50ft pounds of torque less than the 4.3 rear ends ones. You can quote me on that, because I am not sure of that 100%.

Yep, and 25 less HP as well

Sep 21, 2007 | 11:21 AM

#18

97squarebody

Tuned

Joined: Mar 2007

Posts: 254

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From: Sacramento Ca

Hello all;

If you get a stick or the 4.88 gears in a F-450 you will get the detuned version. All sticks and all 4.88's are detuned. The only saving grace is that it is all done with the computer, meaning a decent aftermarket chip will fix that detail. Then there is the warantee detail to be concerned with.

Sep 21, 2007 | 11:47 AM

#19

shunshine X

Thread Starter

Freshman User

Joined: Dec 2002

Posts: 27

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From: florida

I am keeping up with all post and see that opinions on the transmission choice is more what you want than which one is good (lookes like they both are)
does the detune goes for every manual tranny??
I am looking for a F350 not a F450.

Thanks

Sep 21, 2007 | 11:56 AM

#20

SouthTexasDiesel

Elder User

Joined: May 2007

Posts: 650

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A 350 with the 6-speed is full power. Only the 450 has detuned models.

Sep 21, 2007 | 02:58 PM

#21

firehawk198

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Joined: Feb 2006

Posts: 759

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From: Central Massachusetts

Quote:

Originally Posted by SouthTexasDiesel

A 350 with the 6-speed is full power. Only the 450 has detuned models.

Only the 450 with 4.88s is detuned. otherwise it would probably tow 25,000# at full power then that might get into the area of too much weight to stop. Heck I towed 16650 with my v10 with 3.73 manual. Never had a problem in 5 years towing with the clutch or transmission. even though it was rated at 9800# towing. In comparison a 450 with 4.88's might even be able to haul 30,000# just would not be too safe. I know with my 99 slowing down was difficult. Verses my new 6.4 auto really does a super job on a panic stop. Coming down the Pocono mountains a BMW spun out( broke a tie rod?) Everbody around me was locking up on the brakes. My 450 slowed down perfect without any locking up. The Transmission really helped. Might have been more difficult slowing that fast with a manual.

Sep 21, 2007 | 05:42 PM

#22

SouthTexasDiesel

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Joined: May 2007

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A F-450 with 6-speed manual IS detuned to 325 hp & 600 tq. The autos are detuned with 4.88's, and manuals with 4.30's and 4.88's. Believe me I know, because if it wasn't I would have gotten one instead of a 350.