TRNW-2: E4OD Low Reverse Lip Seals

[Dan Hogan]

Lip seals were the update in 1996.  Like Chris mentioned, keeping up with the changes was a challenge.  At this point, you likely have mixed parts from previous rebuilds.

Start of production of 1996 is when they changed to the lip seals on the low/rev piston.  However, they also added a cushion steel and changed the return spring retainer at the same time.


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Dan Hogan

Buster's Transmission Service

https://busterstransmission.com

704.847.5321

________________________________
From: trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> on behalf of Tony's Autoworks via trnw2 <trnw2 at trnw.net>
Sent: Wednesday, March 12, 2025 8:43 PM
To: Technical Discussion Forum <trnw2 at trnw.net>
Subject: TRNW-2: E4OD Low Reverse Lip Seals

Hello Group/

Working on aN E4OD in a 1995 Ford F250 7.3L. Got my O/H kit from WIT
but my Low Reverse piston seals in the kit are straight cut and the
piston seals on my piston are tapered lip seals. It's been a minute
since i've rebuilt this unit and can't remember if the straight cut is
an upgrade or I just have the wrong kit. Every other lip seal and
gaskets look correct. Can someone refresh my memory?

Thanks
Tony
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