TRNW-2: 68rfe Rev Max parts
Tod Chretien
tod at trnw.net
Thu Oct 23 08:17:22 PDT 2025
Thank you Mark!
The shop I used to work for in Stockton just built a 68RFE with a
tuneless kit and it came back with the input drum exploded. And the
builder here at Ralphs (Rodney) won't use the tuneless kit because he
claims he a had couple come back on him with broken components. I always
figured they must have installed the kit in a tuned truck. However I
just confirmed that the one they just built in Stockton only has 160 psi
commanded line pressure in drive, so it's not tuned.
Things that make you go Hmmmmmm...
--
Best Regards,
Tod Chretien
TRNW Inc.
https://www.trnw.net
On 10/23/2025 6:59 AM, Mark Puccinelli wrote:
> No pressure relief system built into the tuneless kits.
>
> On Thu, Oct 23, 2025 at 6:47 AM Tod Chretien via trnw2
> <trnw2 at trnw.net> wrote:
>
> >/general consensus was sometimes those tuneless kits put out way
> more than the advertised 220 or so psi/
>
> Don't they have a pressure relief built into that tuneless kit?
> Maybe one of the Transgo guys can comment on this statement. Mark?
> Robert? Randy? You guys home? LOL
>
> --
> Best Regards,
> Tod Chretien
> TRNW Inc.
> https://www.trnw.net
>
>
> On 10/22/2025 12:40 PM, Steve Everett wrote:
>> I've used both of those numerous times, but a little over a
>> year ago I had a unit come back that had been out a few months,
>> the accumulators had blown out of the vb, pulling the heads off a
>> couple of the screws and bending the plate a good bit, I posted
>> about it on the forum, and general consensus was sometimes those
>> tuneless kits put out way more than the advertised 220 or so psi ?
>>
>> I've probably got 12 or 15 68rfe's out there with my name on
>> them using the tuneless kits, that was the only one that caused
>> a problem as far as I know ? but I've been a little hesitant to
>> use them since then
>>
>> Steve
>>
>> On Wed, Oct 22, 2025 at 2:43 PM Tod Chretien via trnw2
>> <trnw2 at trnw.net> wrote:
>>
>> That seems over-kill if it's not tuned. I would use the
>> Transgo Tuneless kit myself. They shift great with that kit.
>> I also like that Transgo OD pressure plate that allows for an
>> additional clutch.
>>
>> --
>> Best Regards,
>> Tod Chretien
>> TRNW Inc.
>> https://www.trnw.net
>>
>> On 10/22/2025 10:06 AM, Steve Everett wrote:
>>> I've seen the channel plate used in a couple shops I was
>>> at, by the other builder, I've used the seperator plate on
>>> a lot of builds, even stock builds, we've got a customer
>>> from out of town, broke down here, and he wants an upgraded
>>> rebuild, we're pricing him a Rev max drum, which comes
>>> already built ? I didn't know that until I priced it, a
>>> billet input shaft and that valvebody kit, the truck isn't
>>> tuned, totally stock, we are pricing in a billet converter
>>> of course,
>>>
>>> Steve
>>>
>>> On Wed, Oct 22, 2025 at 12:59 PM Tod Chretien via trnw2
>>> <trnw2 at trnw.net> wrote:
>>>
>>> I have used the separator plate and the channel plate
>>> but not their
>>> accumulators. The channel plate is needed on anything
>>> with a tune.
>>>
>>> --
>>> Best Regards,
>>> Tod Chretien
>>> TRNW Inc.
>>> https://www.trnw.net
>>>
>>>
>>>
>>> On 10/22/2025 8:30 AM, Steve Everett via trnw2 wrote:
>>> > I have not used any of Rev Max's parts for these
>>> other than the
>>> > bonded seperator plate, has anyone used their
>>> 68rfe-347 valve body
>>> > foundation build kit ? comes with channel plate,
>>> seperator plate and
>>> > billet accumulators,
>>> >
>>> > Steve
>>> >
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>
> --
> //
> /Mark Puccinelli/
> /Product Support Technician/
> /TransGo/
> /mark.puccinelli at transgo.com/
>
>
> /Adjunct Driveline Professor/
> /Skyline College/
> /San Bruno,CA/
> /puccinellim at smcc <mailto:puccinellim at smccd.edu>d.edu <http://d.edu>/
>
>
>
> Visit me on Facebook:
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--
Best Regards,
Tod Chretien
TRNW Inc.
https://www.trnw.net
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