1994 7.3L 4x4 tranny

[bigerisbetter]

I recently bought a 94 F250 4x4 with the non turbo 7.3L in it it only has 76 thousand miles on it and picked it up for a steal but it has a four speed in it and at 55mph its pushing 26to2800 rpm and i was wondering if thats a little high cuz my first thought was that the gearing is too low but i cant seem to find any zf5s in the state and was wondering what a good price range would be for one if if i should go back with the original auto that someone replaced with this for speed but i cant seem to find any of those in state either. your advice and opions are appreciated

 

[justinray]

Thats way high, either your tach is off or your truck could pull a convienent store down the road.

 

['94IDITurbo7.3]

i take it you have the E4OD automatic trans?

 

[bigerisbetter]

no someone burned up the automatic at 30k and replaced it with a four speed i am looking for a zf5 or an E40D cuz i think that trans is too low of gearing for the truck, and yes it probably could pull a store lol but tach is working properly

 

[92F350CC]

if it's a 4-spd manual, then I'm willing to bet you have the T-19, which is a non-overdrive tranny.

In 4th gear with 4.10's and stock 235/85/16's, you should be pulling around 2400 rpms at 55 mph.

 

[bigerisbetter]

it has 285 75 16s on it but is that high of rpms good for the engine, plus would a zf5 or a E40D be better for the truck? i am new to the diesel thing so all of ur inquiries are very much appreciated.. would it be worth the money to put a chip or a turbo in? if so what brand and prices?

 

[92F350CC]

You could bounce it off the governor all day long and be just fine. These engines are tough and they can handle it. If you want to maintain your sanity however, and maybe see some decent MPG, a ZF5 would be a good choice, and should be a simple swap. Several here have done it. Unless you're dead set on having an auto, I wouldn't put an E4OD there. They are prone to failure unless you spend some $$$ on upgrades.

A turbo is probably the best investment you can make as far as increasing power. These engines are not computer controlled, so you can't install a chip. It's all mechanical. Some of the upgrades out there are turbo, injection pump(talk to the user Agnem about his Moose Pump), injectors, and an intercooler. If you run over 10-12 psi of boost, you will want to install head studs for peace of mind. There is a lot of knowledge here about these old engines, and properly maintained, they'll haul whatever you want for as long as you want.

 

[DragRag]

Do your self a huge favor and slap a zf5 in it, not the E40D. Your already set with a manual trans, just put the good one in it now. Just find one, it's well worth the wait. Going back to auto would be foolish now.

 

[bigerisbetter]

wwasnt sure about the chip didnt think it had all the computer crap in it but wasnt sure, but a turbo sounds amazing lol thanks.

 

[bigerisbetter]

that is what i thought about the trans since it already has the pedals and the setup, what price range should i be looking at cuz i dont want to get screwed of because im a newbie to the diesel thing and dont know what they are worth all i know is i cant seem to find a used tranny anywhere, except for remanufactured ones on ebay nut those are going for like 1500 and up and idk if i want to dro that much on something that is remanufactured.........thanks for the advice

 

[Kevin 007]

The T-19 four speed is a GREAT tranny, way tougher than the ZF, just doesn't have the OD....

 

[92F350CC]

Yes, the T-19 is tougher, but honestly, how many of us have busted our ZF-5?

 

[89dieselbko]

if you look around *craigslist, local yards* you can find them for 300-500 maybe a touch more or less. thats the price range i was finding them when i was looking.

 

[dmaxjoe]

email this posting to a friend detroit metro craigslist > oakland co > for sale / wanted > auto parts - by owner


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*** 1989 Ford F450 Super Duty Diesel Parting out *** - $1 (South Lyon)

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Date: 2012-05-12, 9:30AM EDT
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I have a 1989 F450 Super Duty that I thinking on parting out.
Good 7.3 IDI with 150,000
ZF 5 speed trans with parking brake, will also work for 4x4
10 lug rear axle with 5.38 gear
Good front clip
I have a new in the radiator and condenser in the box
I have 4 new rotors pads and calipers in the box


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• Location: South Lyon
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[Bootzz]

Man go to the jy and find u a zf5 speed
U cant kill them umless u drive ur rig like me (8 ft in the mud)
But they are really good trannys
If u want a new one call smart parts!!
They built me oneand its holding up to boggin and haulin.
Also i found out after ( and someone correct me if im wrong) but i thing theres a zf6 that fits in these okd trucks and thats def gunna be my next tranny if so!!