95 E40d Pan
Senior Member
Joined: Jun 2011
Posts: 2,364
Likes: 102
This is what I know of (copied and pasted obviously)
If it becomes necessary to overhaul your E4OD transmission, you should perform as many updates as possible if it is a pre-1995 unit. E4OD component updates include, as an example, the following items:
Improved (thicker) converter clutch piston (circa 1994), prevents the formation of cracks which relieve fluid pressure from the apply side of the clutch, causing it to slip and even bluing the outside surface of the torque converter in extreme cases. Ensure that your new converter contains an updated OEM or "LuK" brand heavy-duty clutch. This can be difficult, as many torque converter suppliers and remanufacturers may not use this new style of clutch.
*
Higher displacement front pump (for 1995) provides more fluid capacity for faster engagement of reverse and greater lube flow.
*
New (for 1994) 4-pinion overdrive planet and input shaft assemblies replace older 3 and 4 pinion units which tend to develop cracks in the carrier under heavy loads.
*
Center support update kit (for units built from 1989 through part of 1994) replaces wear-prone bushing with a ball bearing and contains a new overdrive stub shaft.
*
Stronger overdrive clutch cylinder snap ring which will not dislodge.
*
Revised sun gear and rear case bushings (circa 1992 model year) provide longer wear life and better lubrication.
*
Four pinion planet carriers (first used in 1992 model year)
*
New forward clutch friction plates with hardened internal splines cure "chatter" and "no-drive" conditions in E4OD and some later C-6 transmissions.
If it becomes necessary to overhaul your E4OD transmission, you should perform as many updates as possible if it is a pre-1995 unit. E4OD component updates include, as an example, the following items:
Improved (thicker) converter clutch piston (circa 1994), prevents the formation of cracks which relieve fluid pressure from the apply side of the clutch, causing it to slip and even bluing the outside surface of the torque converter in extreme cases. Ensure that your new converter contains an updated OEM or "LuK" brand heavy-duty clutch. This can be difficult, as many torque converter suppliers and remanufacturers may not use this new style of clutch.
*
Higher displacement front pump (for 1995) provides more fluid capacity for faster engagement of reverse and greater lube flow.
*
New (for 1994) 4-pinion overdrive planet and input shaft assemblies replace older 3 and 4 pinion units which tend to develop cracks in the carrier under heavy loads.
*
Center support update kit (for units built from 1989 through part of 1994) replaces wear-prone bushing with a ball bearing and contains a new overdrive stub shaft.
*
Stronger overdrive clutch cylinder snap ring which will not dislodge.
*
Revised sun gear and rear case bushings (circa 1992 model year) provide longer wear life and better lubrication.
*
Four pinion planet carriers (first used in 1992 model year)
*
New forward clutch friction plates with hardened internal splines cure "chatter" and "no-drive" conditions in E4OD and some later C-6 transmissions.
5 Year Member
Joined: Oct 2010
Posts: 2,646
Likes: 258
From: Charlotte, NC
This is what I know of (copied and pasted obviously)
If it becomes necessary to overhaul your E4OD transmission, you should perform as many updates as possible if it is a pre-1995 unit. E4OD component updates include, as an example, the following items:
Improved (thicker) converter clutch piston (circa 1994), prevents the formation of cracks which relieve fluid pressure from the apply side of the clutch, causing it to slip and even bluing the outside surface of the torque converter in extreme cases. Ensure that your new converter contains an updated OEM or "LuK" brand heavy-duty clutch. This can be difficult, as many torque converter suppliers and remanufacturers may not use this new style of clutch.
*
Higher displacement front pump (for 1995) provides more fluid capacity for faster engagement of reverse and greater lube flow.
*
New (for 1994) 4-pinion overdrive planet and input shaft assemblies replace older 3 and 4 pinion units which tend to develop cracks in the carrier under heavy loads.
*
Center support update kit (for units built from 1989 through part of 1994) replaces wear-prone bushing with a ball bearing and contains a new overdrive stub shaft.
*
Stronger overdrive clutch cylinder snap ring which will not dislodge.
*
Revised sun gear and rear case bushings (circa 1992 model year) provide longer wear life and better lubrication.
*
Four pinion planet carriers (first used in 1992 model year)
*
New forward clutch friction plates with hardened internal splines cure "chatter" and "no-drive" conditions in E4OD and some later C-6 transmissions.
If it becomes necessary to overhaul your E4OD transmission, you should perform as many updates as possible if it is a pre-1995 unit. E4OD component updates include, as an example, the following items:
Improved (thicker) converter clutch piston (circa 1994), prevents the formation of cracks which relieve fluid pressure from the apply side of the clutch, causing it to slip and even bluing the outside surface of the torque converter in extreme cases. Ensure that your new converter contains an updated OEM or "LuK" brand heavy-duty clutch. This can be difficult, as many torque converter suppliers and remanufacturers may not use this new style of clutch.
*
Higher displacement front pump (for 1995) provides more fluid capacity for faster engagement of reverse and greater lube flow.
*
New (for 1994) 4-pinion overdrive planet and input shaft assemblies replace older 3 and 4 pinion units which tend to develop cracks in the carrier under heavy loads.
*
Center support update kit (for units built from 1989 through part of 1994) replaces wear-prone bushing with a ball bearing and contains a new overdrive stub shaft.
*
Stronger overdrive clutch cylinder snap ring which will not dislodge.
*
Revised sun gear and rear case bushings (circa 1992 model year) provide longer wear life and better lubrication.
*
Four pinion planet carriers (first used in 1992 model year)
*
New forward clutch friction plates with hardened internal splines cure "chatter" and "no-drive" conditions in E4OD and some later C-6 transmissions.
Senior Member
Joined: Jun 2011
Posts: 2,364
Likes: 102
If it'll work then why not. I think I remember reading something about it before. I'd have to look it up again later. There is tons of info about E4ODs online and just as much performance and aftermarket support for them too.
Senior Member
Joined: Jun 2011
Posts: 2,364
Likes: 102
Mine hasn't been rebuilt yet but I can imagine all the upgrades, plus normal overhaul parts, plus labor isn't cheap. That's why I'm going to rebuild it myself when the time comes. Save some money on labor at least.
Senior Member
Joined: Jun 2011
Posts: 2,364
Likes: 102
Not sure about OP, though it pertains to him too, but I just remembered that the part of the pan that the gasket sits on is slightly different. On old pans there are raised spots around the bolt holes that are meant to be used with cork gaskets that supposedly don't seat quite right when you try to use rubber or rubber/metal reusable gaskets. The "new" pan is flat all around and is supposed to seat reusable gaskets properly. Something I've read about the gaskets in a few places anyway, but I'm not 100% on it.
Senior Member
Joined: Jun 2011
Posts: 2,364
Likes: 102
This shows what I mean.
Not my pic. I got it from this link
http://fullsizebronco.com/forum/showthread.php?t=130945
Not my pic. I got it from this link
http://fullsizebronco.com/forum/showthread.php?t=130945