TRNW-2: 10R80 pump bolts

Fri Feb 14 16:10:28 PST 2025

Looks like Ford doesn't have an issue reusing the bolts, just install a
new washer.

On Fri, Feb 14, 2025 at 4:06 PM Chris and Cathy Kershaw via trnw2 <
trnw2 at trnw.net> wrote:

> I've not built a 10 speed, John has done all of them so far. You guys got
> me wondering on this one. I looked in alldata and this is what[image:
> Screenshot_14-2-2025_19029_my.alldata.com.jpeg]
>  I found.
>
> On Fri, Feb 14, 2025 at 6:54 PM pat schulte via trnw2 <trnw2 at trnw.net>
> wrote:
>
>> The bolts that come in the Ford kits are steel, 8mm, 8.8 bolts. I
>> torque them to 15 ft lbs, just like any other 8mm bolt. I find it hard to
>> believe they are TTY bolts, but you guys may know more, I have never
>> bothered to look up the torque specs.
>>
>> On Fri, Feb 14, 2025 at 3:02 PM Steve Everett via trnw2 <trnw2 at trnw.net>
>> wrote:
>>
>>>   Thanks Randy !   good o know ,  oddly enough the seals on the Ford
>>> bolts remain in good shape after removing them , unlike the aftermarket
>>> ones where the sealer is flattened and destroyed after initial tightening,
>>>    I'll play close attention to the condition of the seals, but I intend on
>>> reusing the bolts, unless I can get new ones from Ford,  I do not like or
>>> trust the aftermarket ones
>>>
>>>   Steve
>>>
>>> On Fri, Feb 14, 2025 at 5:32 PM Randolph Wilson via trnw2 <
>>> trnw2 at trnw.net> wrote:
>>>
>>>> There are many reasons a manufacturer will call for new bolts.  Most
>>>> common is because of a special coating on the bolts. The coating can be a
>>>> sealer, a locking agent, or an anti-corrosion lubricant (think magnesium
>>>> cases). They can also be torque to yield. The one thing about TTY is they
>>>> will always be protractor torqued. Not all protractor torqued bolts are
>>>> TTY, but TTY will always be protractor torqued.
>>>>
>>>>
>>>>
>>>> In this case Ford calls for replacing them because of the sealer.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> <http://www.transgo.com/>
>>>>
>>>> *Randy Wilson*
>>>>
>>>> *Technical Support Specialist*
>>>>
>>>> 2621 Merced Avenue El Monte, CA 91733 USA
>>>> Office: 626.443-7451
>>>>
>>>> *Calibration | Innovation |Performance*
>>>>
>>>> <https://www.facebook.com/TransGo-600961476956220> [image:
>>>> 1475592640337_I] <https://www.instagram.com/transgoshiftkit> [image:
>>>> 1475592655171_t] <https://twitter.com/transgoshiftkit> [image:
>>>> 1475592664972_Y]
>>>> <https://www.youtube.com/channel/UCg6v9MzFmq7g3fy7-r9PGIg> [image:
>>>> 1475592672363_L] <https://www.linkedin.com/company/transgo1/>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> *From:* trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> *On Behalf Of *Dan
>>>> Hogan via trnw2
>>>> *Sent:* Friday, February 14, 2025 1:11 PM
>>>> *To:* Technical Discussion Forum <trnw2 at trnw.net>
>>>> *Subject:* Re: TRNW-2: 10R80 pump bolts
>>>>
>>>>
>>>>
>>>> Steve,
>>>>
>>>>
>>>>
>>>> These factory pump bolts appear to be TTY (torque to yield) and are one
>>>> and done.  I suspect if you decided to re-use, using the factory torque
>>>> spec likely will be too low as the bolts stretch once and deform.
>>>>
>>>>
>>>>
>>>> I know the transfer case to transmission bolts are definitely TTY and
>>>> the factory torque spec is very low.  I don't think shops are replacing as
>>>> needed, but it's likely a bad idea.  There's nine of them so guess they
>>>> cross their fingers, pray and blame later.
>>>>
>>>>
>>>>
>>>> I wish makes would not use these type fasteners as it only introducing
>>>> errors and mistakes in the aftermarket to already expensive and costly
>>>> work.  Blame the eurotrash as they started this mess with TTY on likely
>>>> unnecessary areas of vehicles.  Cheaper i guess.
>>>>
>>>>
>>>>
>>>> ---
>>>>
>>>>
>>>>
>>>> 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
>>>> Steve Everett via trnw2 <trnw2 at trnw.net>
>>>> *Sent:* Friday, February 14, 2025 10:55 AM
>>>> *To:* Technical Discussion Forum <trnw2 at trnw.net>
>>>> *Subject:* TRNW-2: 10R80 pump bolts
>>>>
>>>>
>>>>
>>>> anyone had any issues with reusing the factory 10R80 pump bolts ?  I've
>>>> reused them on a couple units with no problems, I've tried using the ones
>>>> that come in Precision kits, but their seal is nothing but silicone, which
>>>> smashes and destroys itself after initial tightening ,  looks cheesy to me,
>>>> I trust the factory bolts over them,  as long as you don't over torque
>>>> them
>>>>
>>>>
>>>>
>>>>   Steve
>>>> This message was sent from the TRNW Technical Discussion Forum (trnw2).
>>>> You were sent this message because you have subscribed to our mailing list.
>>>> If you don't want to receive these emails from TRNW in the future, please
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>>>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>>>>
>>> This message was sent from the TRNW Technical Discussion Forum (trnw2).
>>> You were sent this message because you have subscribed to our mailing list.
>>> If you don't want to receive these emails from TRNW in the future, please
>>> unsubscribe here:
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>>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>>
>>
>>
>> --
>> Pat Schulte
>> AAMCO Transmissions
>> Temecula, Ca.
>> This message was sent from the TRNW Technical Discussion Forum (trnw2).
>> You were sent this message because you have subscribed to our mailing list.
>> If you don't want to receive these emails from TRNW in the future, please
>> unsubscribe here:
>> https://www.trnw.net/unsubscribe.php?forum=2
>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>
> This message was sent from the TRNW Technical Discussion Forum (trnw2).
> You were sent this message because you have subscribed to our mailing list.
> If you don't want to receive these emails from TRNW in the future, please
> unsubscribe here:
> https://www.trnw.net/unsubscribe.php?forum=2
> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355

-- 
Pat Schulte
AAMCO Transmissions
Temecula, Ca.
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