OBS with 4r100
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New User
Joined: May 2017
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OBS with 4r100
im new here and i have already searched for anything about a drive shaft to use. I have a 1997 CC DRW that i have replaced the E4OD with a 4R100. my only problem that im having is that i cant find a drive shaft that will work. the E4OD slip yoke is much smaller then the 4R100 tail housing. im try to find out if a SD shaft will work, the intermit shaft or the whole 2pc.
thank you
thank you
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
That's your only problem? What computer did you use? How did you wire it in?
You will likely need a custom driveshaft made. There are probably driveline shops in your area that specialize in this service. You can also go online and provide the dimensions that you need and they will build one and ship it to you.
You will likely need a custom driveshaft made. There are probably driveline shops in your area that specialize in this service. You can also go online and provide the dimensions that you need and they will build one and ship it to you.
Fleet Mechanic
Joined: Jan 2012
Posts: 1,841
Likes: 6
I know a guy who did this a while ago and said it worked but both trucks were 4x4 there was something that the 4r monitored that the e4od didn't he said he just didn't hook up that sensor don't remember what ha said it was but apparently it worked fine. Did the 4r100 come from a 4x4 truck the 4x4 and 4x2 4r100's had different tail shafts your going to have to get a custom drive shaft made the only way to change the tail shaft in the 4r is to disassemble the whole trans
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,714
Likes: 2,640
From: SE Florida
The 4R100 has a turbine speed sensor and an output speed sensor. The E4OD doesn't have either one of these. If you just ignore the sensors the trans will be fine.
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Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,714
Likes: 2,640
From: SE Florida
It depends on which 4R100 you have. The early '99s have the same pump as the E4OD. After that the pumps had an orifice for the lockup clutch opened from 0.030" to 0.250". That may not seem like a big change, but it is huge. If you have the later pump any time the torque converter locks it is going to SLAM on.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
The 4R100 has a Pulse Width Modulated torque converter lock up and the E4OD uses an "on-off" signal. The E4OD PCM tuning will not play nice with the difference. You may consider to swap to an E4OD pump. Their also some other mods that can be done to it before installation.
Frmr Ford Trans Engr
Joined: Aug 1999
Posts: 24,714
Likes: 2,640
From: SE Florida
The later 4R100s have the PWM. The early '99s had the same on/off.
If the orifice is downsized to 0.030" on the later pumps the E4OD software should work with the later solenoid. A PWM solenoid will function with an on/off signal.
If the orifice is downsized to 0.030" on the later pumps the E4OD software should work with the later solenoid. A PWM solenoid will function with an on/off signal.
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Will the air bleed orifice location near the deleted orifice (no hole there) on the 4R100 pump housing have any effect on its operation if an orifice is drilled into the pump housing?
Lead Driver
Joined: Jun 2003
Posts: 8,298
Likes: 25
From: Damon (South East Texas)
Sorry about the confusing way I asked my question. Rereading it, it was not stated correctly. Here are pics of both pump housings and the air bleed on the PWM version, along with an additional orifice near the top left . There appears to be 4 differences when it comes to the addition/deletion of orifices in the 2 pump housings. Would all them need to be modified to make the PWM housing work correctly with "on-off" E4OD software? I know that TransGo make a replacement converter lock up valve that converts from PWM to "on-off" that works with the PWM programming, but I haven't heard of anyone using it with non-PWM software. Would it be wise to go back to the earlier housing to avoid issue?
