7.3L any differences '00-'03
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7.3L any differences '00-'03
Are there any differences in horse power, torque, and performance with the 7.3's from '00 to '03 assuming everything is stock. Did ford make any drastic changes form '00 to '03.
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Joined: Jan 2006
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From: Hartford, WI
Originally Posted by tims01
diode??????
In my 2001 4R100, Ford used a Mechanical Diode which has failed in my truck from what I was told. What is this and what has Factory Tech done to eliminate it happening again?
The 2001 Models built for August 2000 to March 2001 are the ones with a mechanical diode, all other models have a 34 element sprag from the factory. All Monster Boxes, irregardless of year are built with the 45 element sprag assembly. A mechanical diode is one form of a one way clutch. When the E4OD came out in 1989, it had a sprag one way clutch on the top of the direct drum, and it worked great for 12 years. So Ford in 2001 changed it to the mechanical diode, which didn't work great and after literally 8 days, they realized it was not going to work. The only problem was that all the tooling for the original sprag was destroyed already and it took Ford 6 months to get new machines to go back to the way that they always were. The units built during those 6 months are the diode units. The diode has a different clutch plate pattern, different direct drum and an integral race. To replace one with a sprag, you need to replace all these parts
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I am no expert but I do know that the 99 and 00 Powerstrokes are the "ones to have" and since there was no Excursion in 99 that would make 00 the best year for a 7.3 Excursion. I had a 2000 F350 with a Powerstroke and it was an awesome truck. Good luck.
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Joined: May 2006
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From: Versailles, KY
The build dates referenced above are for the TRANSMISSIONS, not the vehicle. I know of no way to know for sure whether you have the suspect transmission, except to avoid all 01's. Mine had the transmission, which failed on vacation 2 months after I bought the truck. I got it built stronger than original with a shift kit that should take me another 150,000 miles. Cost about $2,200, but I had it done at an independent shop while away from home, but I got a good vibe from the rebuilder. Use it as a tool to get a good deal on the truck. Since I only paid $9,500 for mine, I feel like I did OK. GM transmissions generally last around 150,000 miles. I don't know how long a non-diode transmission will last.
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Aklim from what I have been told yes that can be changed. I do not know of anyone whgo has actually done it. I was jsut refering to the fact that off the shelf the newer models had more HP and Torque. Let me know if you have ever heard of anyone doing the change.
