TRNW-2: 10R80 pump bolts

[Chris and Cathy Kershaw]

There are a lot of throwaway bolts it seems. Not sure if I was ignorant of
it years ago or it’s a new thing.
Focus axle nuts and ball joint bolts, escape axle nuts, expedition & f150
transfer case bolts, caravan axle nuts.
I try to order extras of all these as I use them. Ford keeps all the common
ones in stock pretty good. I use Dorman caravan axle nuts, since the dealer
rations them.

On Fri, Feb 14, 2025 at 5:07 PM Wayne via trnw2 <trnw2 at trnw.net> wrote:

> I’ve reused them on many of these units, no issues.
> Sent from my iPhone
>
> On Feb 14, 2025, at 4:11 PM, Dan Hogan via trnw2 <trnw2 at trnw.net> wrote:
>
> 
>
> 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
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