TRNW-2: 6R140 clutch clearances

[greg at allianceautoworks.com]

That does make more sense. I have made notes of it

Thank you

 

From: trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> On Behalf Of Rondle
David via trnw2
Sent: Monday, December 8, 2025 1:35 PM
To: Steve Everett <severett61 at gmail.com>; Technical Discussion Forum
<trnw2 at trnw.net>
Subject: Re: TRNW-2: 6R140 clutch clearances

 

ATSG has revised clearance, I have written down "do NOT go by Ford specs"
The specs are:

   Forward and Direct .030-.045"

   Intermediate              .040-.055

   Overdrive                     .060-.080

      

 

Rondle David

RPM Transmission

524 Old Settlement Rd

Travelers Rest SC 29690

864-553-9493

www.rpmtransmissionupstate.com <http://www.rpmtransmissionupstate.com> 

 

  _____  

From: trnw2-bounces at trnw.net <mailto:trnw2-bounces at trnw.net>
<trnw2-bounces at trnw.net <mailto:trnw2-bounces at trnw.net> > on behalf of Steve
Everett via trnw2 <trnw2 at trnw.net <mailto:trnw2 at trnw.net> >
Sent: Monday, December 8, 2025 11:10 AM
To: Technical Discussion Forum <trnw2 at trnw.net <mailto:trnw2 at trnw.net> >
Subject: TRNW-2: 6R140 clutch clearances 

 

  I'm in the process of building a 6R140 unit that was a BD Diesel unit,
they use their own machined pressure plates in the forward drum, OD drum and
intermediate drum, and were using some thinner steels to add more clutches,
I'm building it using GPZ clutches and original thickness Kolene steels,   

 

  I'm having an issue getting my clutch clearances right ,  according to
some ATRA info I have the forward,direct and intermediate should have a max
of .021 clutch clearance ?   which doesn't sound right to me ?   I've
managed to stack up each with about .010 clearance per clutch , which in my
mind is okay ?  

 

   I've built a couple of these before, but always using stock steels and
clutches, and don't remember what clearance I had with those ? 

 

   Looking for opinions from those who've done some of these 

 

   Steve 

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