TRNW-2: 10R80 pump bolts

Fri Feb 14 16:05:22 PST 2025

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
>>> 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:
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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
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> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
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