Sorry Ya Got an Auto?
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,741
Likes: 2,669
From: SE Florida
Sorry Ya Got an Auto?
>My SD250 5.4 4.10 auto works and shifts great. Especially
>with a broken left ankle on the way to the hospital.
I can relate to that. I just sprained my left ankle, but the 15 miles home driving my 6 speed was more than a little uncomfortable! I used my right foot on the clutch for all the gear changes, but launching still took the very sore left foot.
Mark
>with a broken left ankle on the way to the hospital.
I can relate to that. I just sprained my left ankle, but the 15 miles home driving my 6 speed was more than a little uncomfortable! I used my right foot on the clutch for all the gear changes, but launching still took the very sore left foot.
Mark
Junior User
Joined: Nov 2002
Posts: 82
Likes: 0
Sorry Ya Got an Auto?
I read many posts about manual transmissions and have heard many differant views. The old auto trans were not the best but now they are unbeatable for power delivery. It all breaks down to fluid dynamics. Simply put fluids can not be compressed only put under pressure (hydraulic). Metal on the other hand can be compressed if put under too much pressure, it also can become soft as temperatures rise. This is why hydraulics run most all heavy machinery. Jet engines run blades and rotors coupled by air NEVER direct drive. Fluid can withstand and delivery far power than manual transmissions can. It simple physics and it never lies. Commercial operaters found this out years ago. Manual transmissions totally depend on metal to metal to produce torque, and metal can be compressed (become weak)and chip or crack when put under driving torque. Fluid simply can not be compressed no matter how much torque you put on it, it is impossible. You put a manual lifting device against a hydraulic lifting device and there is no comparision. Hydraulics will lift as much as you can give it. Like a submarine at 7000 ft. with a pin hole in it, the water pressure will cut steel. Fluid drive is far more capable of constant torque demands than manual, pure physics that can't be changed, argued or wished away!
New User
Joined: Nov 2002
Posts: 4
Likes: 0
From: home
Sorry Ya Got an Auto?
I am diggin' my Slush Box. I've driven standards for many moons. The ZF which Ford started using around 1989 is a PIA. Impossibly hard to float the shifts. I finally broke down and ordered my new truck with the auto trans. The first time I got stuck in Houston, in morning rush hour traffic, I was in Love with my automatic. I am prolly going to try some type of aftermarket thingy-ma-jig to make the shifts firmer but all in all I like my Automatic transmission.
Raymond
2001 F450 PSD W/Auto trans
Raymond
2001 F450 PSD W/Auto trans
Senior User
Joined: Oct 2001
Posts: 437
Likes: 1
From: United States
Sorry Ya Got an Auto?
>The ZF which Ford started using around 1989 is a
>PIA. Impossibly hard to float the shifts.
Don't want to get in your business, but you shouldn't be "floating" these manual transmissions anyway.:-X23
Just my 2¢ anyway!
Welcome to FTE!
>PIA. Impossibly hard to float the shifts.
Don't want to get in your business, but you shouldn't be "floating" these manual transmissions anyway.:-X23
Just my 2¢ anyway!
Welcome to FTE!
Senior User
Joined: Mar 2002
Posts: 103
Likes: 0
From: Durand, IL
Sorry Ya Got an Auto?
I will most likely want firmer shifts from my v10 auto, but will need to drive it first to see. I pick up the truck this week. One thing I hate is a feel of a slipping trans. If I were to order my truck over again, I may have opted for the 4.30 limited slip with the 6 speed. The gas savings with the stick would probably offset the gas loss with the 4.30 gears and it would be awash. Can you imagine granny gear low with the 4.30s? Mine will be a 3.73 auto. We'll see in a couple days how it is. I may have to buy something from Ken to firm up the shifts.
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