TRNW-2: 10R80 pump bolts

Sat Feb 15 08:56:00 PST 2025

Last I looked the 10r paper rubber kits are cheaper from ford & frictions
are more expensive from ford. We’ve been doing Transtar kits with bw
frictions. Sometimes our salesman has to order the individual frictions
from a couple branches.
On Sat, Feb 15, 2025 at 11:17 AM Steve Everett via trnw2 <trnw2 at trnw.net>
wrote:

>   We do have a small local dealer that we get all the drums and
> valvebodies from , they're good about keeping the commonly replaced items
> in stock, I'll get the manager to check on kits,  I generally won't use
> anything but BW on the friction,  and I ordered a Transtec paper and rubber
> yesterday, which amazingly was actually cheaper than the other option
>
>     Steve
>
> On Sat, Feb 15, 2025 at 10:55 AM pat schulte <zzyzxpat at gmail.com> wrote:
>
>> If you have a dealer close it might be something to look at, I buy
>> everything from Ford. I have found especially with friction and steels, the
>> aftermarket (Ray) usually are not the correct thickness many times, plus
>> the OE prices are very competitive.
>>
>> On Sat, Feb 15, 2025 at 7:45 AM Steve Everett via trnw2 <trnw2 at trnw.net>
>> wrote:
>>
>>>    The unit I tore down friday was a 2021 unit, and it has the external
>>> torx bolts, with a rubber seal around the inside of the head,  similar to
>>> 4L80e pump bolts,  this unit had a terrible converter shudder, which was
>>> the main reason for pulling it,  around 100k,  trash can is worn but not
>>> real bad, drum sleeve hasn't moved,  we're replacing both anyway with
>>> updated parts, as well as a valvebody,
>>>
>>>     The reason I asked about the pump bolts originally is because I
>>> remember when we first started seeing these units we were told "always
>>> replace the pump bolts," but in looking closely at them I saw no reason for
>>> that ? all the ones I've done have had the rubber seal around the inside of
>>> the bolt head,   the ones that come in one of the aftermarket ktis simply
>>> have a ring of silicone there, and once you tighten them down it destroys
>>> and flattens that silicone ring,  ( discovered that on the first unit I
>>> built when I didnt have a clutch hub all the way engaged in the clutches,
>>> and had to tear the unit back down )
>>>
>>>     It seems there isn't a day goes by lately that I am not disappointed
>>> in the quality of some of the replacement parts we either have to use , or
>>> are supposed to use?  I'm seriously looking forward to retiring and then I
>>> will pick and choose what I want to work on,
>>>
>>>     Steve
>>>
>>> On Sat, Feb 15, 2025 at 8:02 AM Dan Hogan via trnw2 <trnw2 at trnw.net>
>>> wrote:
>>>
>>>> They changed these pump bolts at some point as the original installed
>>>> and original replacements appeared to have a sealing patch on the bolt
>>>> flange and now the bolts in the OE kit have actual rubber seals under the
>>>> bolt head.  Ford also changed from 10 mm hex heads to an external torx plus
>>>> heads (EP) shown below.
>>>>
>>>>
>>>> Thanks Randy for the info and this makes better sense on the pump bolts
>>>> here.
>>>>
>>>> The aluminum bolts used to hold the transfer case to the transmission
>>>> must not be technically TTY as they have only one specified torque value.
>>>> I was looking and appears there are another category of bolts for aluminum
>>>> fasteners designated as one-time use (OTU) and we see this a lot of German
>>>> suspensions.  These don't use a seal patch or have any locking compound on
>>>> them, so I suppose the fastener permanently stretching much like a TTY
>>>> fastener is the reason for the one time use.
>>>>
>>>>
>>>> Chris,
>>>>
>>>> Identifix must have the original (old) manual for the 2018 as this is
>>>> not the same description as I just finished an 18 this week.  I think your
>>>> Alldata is showing the manual for a later model or a revised copy.
>>>> Probably closer to 2023-2024 would be my guess.
>>>>
>>>>
>>>>
>>>> Check to see if Alldata shows the revision date up in the right top
>>>> corner of the document.  This is showing  8/21/19.
>>>>
>>>>
>>>> Keeping us on our toes 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 6:01 PM
>>>> *To:* Randolph Wilson <Randolph.Wilson at transgo.com>; Technical
>>>> Discussion Forum <trnw2 at trnw.net>
>>>> *Subject:* Re: TRNW-2: 10R80 pump bolts
>>>>
>>>>   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.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.transgo.com_&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=V0WPChPhqgQ5ukNS48lkrV9etP1qesMLG6qjl_UdEVOZJ-QLBQ96gD98wOcjzhiC&s=fzsRheYvTDi1SiozTvti63qG6x5_qCvpuwgeykLD-zs&e=>
>>>>
>>>> *Randy Wilson*
>>>>
>>>> *Technical Support Specialist*
>>>>
>>>> 2621 Merced Avenue El Monte, CA 91733 USA
>>>> <https://www.google.com/maps/search/2621+Merced+Avenue+El+Monte,+CA+91733+USA?entry=gmail&source=g>
>>>> Office: 626.443-7451
>>>>
>>>> *Calibration | Innovation |Performance*
>>>>
>>>>
>>>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.facebook.com_TransGo-2D600961476956220&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=V0WPChPhqgQ5ukNS48lkrV9etP1qesMLG6qjl_UdEVOZJ-QLBQ96gD98wOcjzhiC&s=3P8PB-WnggNOB5VJh2BLZbcQh2kQwSl16OdWeJX4kxE&e=>
>>>>  [image: 1475592640337_I]
>>>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.instagram.com_transgoshiftkit&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=V0WPChPhqgQ5ukNS48lkrV9etP1qesMLG6qjl_UdEVOZJ-QLBQ96gD98wOcjzhiC&s=CKyeC_VG14e54DpQHFhtiiFyCxoawV4DDj9IKhXEB3k&e=>
>>>>  [image: 1475592655171_t]
>>>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__twitter.com_transgoshiftkit&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=V0WPChPhqgQ5ukNS48lkrV9etP1qesMLG6qjl_UdEVOZJ-QLBQ96gD98wOcjzhiC&s=ttNt-_lviBu6o9UU07My_bxr2SxgJTvW278a9VY0-Jk&e=>
>>>>  [image: 1475592664972_Y]
>>>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.youtube.com_channel_UCg6v9MzFmq7g3fy7-2Dr9PGIg&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=V0WPChPhqgQ5ukNS48lkrV9etP1qesMLG6qjl_UdEVOZJ-QLBQ96gD98wOcjzhiC&s=UlaTS0FfXqreCaQOThPd19jxVtcUXk5T9AmZuj3SIb8&e=>
>>>>  [image: 1475592672363_L]
>>>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.linkedin.com_company_transgo1_&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=V0WPChPhqgQ5ukNS48lkrV9etP1qesMLG6qjl_UdEVOZJ-QLBQ96gD98wOcjzhiC&s=nS9NjWlvB8-dPXafN_52iJvwn-Y30b0ZcqYL6kr06Ac&e=>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> *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
>>>> <https://urldefense.proofpoint.com/v2/url?u=https-3A__busterstransmission.com&d=DwMFaQ&c=euGZstcaTDllvimEN8b7jXrwqOf-v5A_CdpgnVfiiMM&r=smOzNWPZu5-MBJg-0tkHhHoVW9xEBKdKWsMxBeFAJDZVJI6X79ZhQVJ_erT6I9aF&m=V0WPChPhqgQ5ukNS48lkrV9etP1qesMLG6qjl_UdEVOZJ-QLBQ96gD98wOcjzhiC&s=u_eDJJFc-DyruvUBRow-8RgGFf8DM1dgQUGnSF8cHM4&e=>
>>>>
>>>> 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).
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>>>> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
>>>> <https://www.google.com/maps/search/2825+Walnut+Terrace,+Modesto,+CA+95355?entry=gmail&source=g>
>>>>
>>>> This message was sent from the TRNW Technical Discussion Forum (trnw2).
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>>>>
>>> This message was sent from the TRNW Technical Discussion Forum (trnw2).
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>>
>>
>>
>> --
>> Pat Schulte
>> AAMCO Transmissions
>> Temecula, Ca.
>>
> This message was sent from the TRNW Technical Discussion Forum (trnw2).
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