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07-24-2021, 01:16 PM
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#1
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Junior Member
Join Date: Jul 2021
Posts: 4
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Mystery Part
Would anyone here happen to recognize this sheered off black bolt, it's threaded into a 14mm or 5/8's nut. notice the square head of the black bolt, it takes an 8mm wrench.
Have a 1980 Fleetwood with a Chrysler 440 V-8, has a 3 spd, Automatic transmission. I dropped the tranny's oil pan to replace the pan's leaky gasket, pan had a small ring magnet in center and this busted bolt & nut laying near it.
Discovered this only after getting this Behemoth home after test driving it a few miles. Put new pan gasket on, which resolved the leak issue.... I'm puzzled... Tranny seems to shift ok...and I've never seen anything like that in an automatic....although, I know about a nickel's worth about automatic transmissions. 
It certainly doesn't look like it's been laying there for 40 years.... or even 4 years to me... looks like the adjustment turn bolt for a wheel/gear puller tool.
Anybody recognize this mystery bolt, I'd appreciate it.
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07-24-2021, 01:35 PM
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#2
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Senior Member
Join Date: Jan 2018
Location: Capistrano Beach, California
Posts: 4,465
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Quote:
Originally Posted by CntrlScrtnzr
Would anyone here happen to recognize this sheered off black bolt, it's threaded into a 14mm or 5/8's nut. notice the square head of the black bolt, it takes an 8mm wrench.
Have a 1980 Fleetwood with a Chrysler 440 V-8, has a 3 spd, Automatic transmission. I dropped the tranny's oil pan to replace the pan's leaky gasket, pan had a small ring magnet in center and this busted bolt & nut laying near it.
Discovered this only after getting this Behemoth home after test driving it a few miles. Put new pan gasket on, which resolved the leak issue.... I'm puzzled... Tranny seems to shift ok...and I've never seen anything like that in an automatic....although, I know about a nickel's worth about automatic transmissions.
It certainly doesn't look like it's been laying there for 40 years.... or even 4 years to me... looks like the adjustment turn bolt for a wheel/gear puller tool.
Anybody recognize this mystery bolt, I'd appreciate it. |
I cannot offer any information about a tranny oil pan, but I agree with you it looks to be an adjustment screw and locking nut. Hard to tell the size. It looks like part of a tappet adjustment screw, but that would not be anywhere near the transmission oil pan.
I know absolutely nothing about auto trannies, but have heard about "adjusting the bands" when one begins to slip. Don't know if it's even relevant, but it conjures up images of some type of adjustment that could use a wrench, like on the broken part you found.
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Larry, Eileen, and Finley
2004 Alpine 36FDDS
Third motor home, first Alpine, no need for another.
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07-25-2021, 05:09 AM
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#3
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Senior Member
Join Date: May 2013
Location: SW Louisiana
Posts: 630
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A bunch of salvage title junk I rebuilt 
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07-25-2021, 07:43 AM
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#4
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Senior Member
Join Date: Jun 2011
Location: FL
Posts: 11,452
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Looks like a shock absorber top stud.
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Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008
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07-28-2021, 01:51 AM
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#5
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Member
Tiffin Owners Club Vintage RV Owners Club
Join Date: Dec 2016
Location: Columbus, OH
Posts: 38
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2003 Holiday Rambler Neptune 36, Cummins 300
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07-28-2021, 04:30 AM
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#6
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Senior Member
Join Date: May 2004
Location: MI
Posts: 2,197
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Quote:
Originally Posted by YC1
Looks like a shock absorber top stud.
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Inside the transmission pan??
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07-28-2021, 06:12 AM
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#7
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Senior Member
Join Date: Jun 2011
Location: FL
Posts: 11,452
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Quote:
Originally Posted by Argosy
Inside the transmission pan??
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Well, he asked what it looked like and it does look like a busted off shock top.
I have seen many strange things in my long life.
Opening a commercial two way radio and finding a small roll of solder between a bottom cover and the circuit board amazed me. How the radio worked for years with that potential short circuit was strange.
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Certified Senior Electronic Technician, Telecommunications Engineer, Telecommunications repair Service Center Owner, Original owner HR 2008
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07-29-2021, 03:45 AM
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#8
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Junior Member
Join Date: Jul 2021
Posts: 4
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Dang... never lucky
Quote:
Originally Posted by Boogie_
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Yes sir, Ya nailed it dead on I believe.... I guess....lol, Not an automatic trans man, have rebuilt some old manual 3 speeds, did a 4 speed Pinto trans once, and have even replaced a couple automatic transmissions in a chevy van, and a Nova
Well now that this mystery part has been solved, May I ask a couple more intriguing questions then sir?? Seems your educated in this subject
1.) What made it break off initially then? /where is the rest-remainder of it located @ & should it be also removed??
2.)Is this something a somewhat mechanical ol-skool
(genius w/ older motors/cars) who's somewhat knowing theoretically how A/T's work, but has never done anything short of fluid & filter pan changes??? Is this rear band adjustment bolt and jamb nut replaceable without major transmission removal/dissection??
Appreciate & respect any & all advice
__________________
"The eyes are useless when the mind is blind"
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07-29-2021, 04:34 AM
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#9
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Junior Member
Join Date: Jul 2021
Posts: 4
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One can learn alot about a Mopar 727 A/T in an hour or so...lol
May have a solution here already
https://www.forabodiesonly.com/mopar...broken.272160/
__________________
"The eyes are useless when the mind is blind"
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08-03-2021, 09:25 PM
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#10
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Senior Member
Forest River Owners Club
Join Date: Nov 2019
Location: Florida
Posts: 301
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It has been awhile since I worked on a Mopar transmission. To answer your question can it be easily replaced if I remember correctly it can be replaced easily.if you can turn the peice that is still in the transmission it will come completely out.and you screw the new peice In.then adjust it according to the manufacture specs. I will see if I can locate my old school transmission service manuals and get the spaces and adjustment procedure for you.
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All days are good days; just different levels of good! :
When life gives you lemons make it into lemonade and make it a great day.
2022- ?? 2005 Georgetown xl 370
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