an odd transmission
Thread Starter
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More Turbo
Joined: Mar 2008
Posts: 658
Likes: 2
an odd transmission
so my friend has this 93 f-350 4x4 with a 460. The odd thing is that it has a 3-speed overdrive tranny. It only has 3 gears, and the o/d switch on the gear selector does function. I was under the impression that both the aod and e4od both had 4 gears???
What is this thing, or are we just going insane?
What is this thing, or are we just going insane?
Post Fiend
Joined: Apr 2004
Posts: 6,473
Likes: 4
From: Lafayette, IN
I'd put money on the E4OD, too--it's a 3-speed tranny with overdrive, for a total of 4 "gears". 3rd gear is a 1:1 ratio, thus making the final "gear" an overdrive gear at around 0.74:1 or so. The other auto tranny option on an F350 in this era was a C6 (generally fleet vehicles only), which is a 3-speed, no overdrive. 3rd gear is still the 1:1 ratio. The AOD was a 3-speed with overdrive (4 gears total) as well, but was only in the half-tons and cars behind the 300 and the 302 (and some smaller car engines also).
Jason
Jason
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More Turbo
Joined: Mar 2008
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Ok... I'll say it again... It has a total of 3 forward gears. Only three. Not four. Three. There are three gears. Only three. It's like it has the same gearing as a C-6, but has overdrive... Only three forward gears. Only three. Not four, three.
Lead Driver
Joined: Aug 2006
Posts: 5,670
Likes: 12
From: Sand Lake, MI
Is it skiping a gear? a E4OD can and will do that under the right conditions.
Go here and read the questions,
Troubleshooting the E4OD and 4R100E Transmission
Look for a symptom covered that closely matches what it does.
Go here and read the questions,
Troubleshooting the E4OD and 4R100E Transmission
Look for a symptom covered that closely matches what it does.
Thread Starter
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More Turbo
Joined: Mar 2008
Posts: 658
Likes: 2
Yeah its not an e4od. I have a truck with an e4od, it has a total of four forward gears. The vehicle in question has a total of three forward gears with the od button.
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Postmaster
Joined: Jul 2001
Posts: 4,956
Likes: 10
From: MD
Is it a completed truck or...? Cab/chassis?
Best thing is to get the trans code off the pickup, take a pic of the trans pan and compare.
Best thing is to get the trans code off the pickup, take a pic of the trans pan and compare.
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Posting Guru
Joined: Jan 2001
Posts: 2,358
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From: Nebraska
From your signature it looks like you have trucks with a C6 and an E4OD. Why don't you crawl underneath and compare the pan of the tranny in question to your trucks. It's pretty easy to tell the difference between a the two.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
Your question is impossible to answer the way you phrased it. You describe no such transmission that Ford ever used in that truck.
If it has a functioning overdrive, then it can't be the C6. The only other automatic tranny that will bolt up to that motor without an aftermarket adapter is the E4OD.
So you have an E4OD that is skipping a gear - probably 1st. Takes off kinda slow I bet?
If it has a functioning overdrive, then it can't be the C6. The only other automatic tranny that will bolt up to that motor without an aftermarket adapter is the E4OD.
So you have an E4OD that is skipping a gear - probably 1st. Takes off kinda slow I bet?
Fleet Mechanic
Joined: Mar 2005
Posts: 1,603
Likes: 1
From: St Louis
How are you counting the number of gears in this tranny? If you are counting gearshift positions; there are only 3 with a button to turn overdrive off when needed/desired. If you are counting shifts points you will feel/hear 3 shifts for 4 gears. How are you counting the gears is the question.