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For Any Welders Out There #4564567
11/05/17 08:45 AM
11/05/17 08:45 AM
Joined: Feb 2011
Posts: 865
N. Georgia Mtns
Sierra048 Offline OP
Sierra048  Offline OP
Joined: Feb 2011
Posts: 865
N. Georgia Mtns
I'm getting my ducks in a row for when I drop the transmission pan on my Sierra to change the filter. My pan doesn't have a drain plug, YET! I found this on line and I'm thinking of adding this to the pan before I re-install it. I like this one because it's relatively flat on the outside with no space taken up inside the pan.



I'll need someone to weld this on since I'm not a welder, hence the reason for my topic. How much do you it would cost for someone to weld this onto my pan? Hole will aready be drilled. Just welding it in place and nothing else. Where I live I'm a little limited in the number of welders around, at least the few who advertise. I'd like to get an idea of what to expect. Thanks.

Last edited by Sierra048; 11/05/17 08:46 AM.

2014 Nissan Frontier
2014 GMC Sierra 1500
Re: For Any Welders Out There [Re: Sierra048] #4564570
11/05/17 08:51 AM
11/05/17 08:51 AM
Joined: Nov 2009
Posts: 4,943
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 4,943
Houston, Texas
I paid $30 for someone to tig weld a Dorman plug onto mine.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: For Any Welders Out There [Re: Sierra048] #4564575
11/05/17 08:56 AM
11/05/17 08:56 AM
Joined: May 2003
Posts: 9,337
Central Coast, Calif.
tom slick Offline
tom slick  Offline
Joined: May 2003
Posts: 9,337
Central Coast, Calif.
Thatís an NPT bung and plug, NPT isnít usually used on drains (especially automotive) because it tends to wear out after several uses and not seal well.


You get what you pay for...
So keep in mind how much you paid for this advice.
Re: For Any Welders Out There [Re: Sierra048] #4564577
11/05/17 08:57 AM
11/05/17 08:57 AM
Joined: Oct 2004
Posts: 7,988
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 7,988
Cincinnati, OH, USA
Guy I use pretty regularly welded a bung onto a rear end cover on my GMC for $10 (factory plug in the case hopelessly rusted & stripped). Look for a little local guy who does stuff for cash.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: For Any Welders Out There [Re: tom slick] #4564580
11/05/17 08:57 AM
11/05/17 08:57 AM
Joined: Oct 2004
Posts: 7,988
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 7,988
Cincinnati, OH, USA
Originally Posted By: tom slick
Thatís an NPT bung and plug, NPT isnít usually used on drains (especially automotive) because it tends to wear out after several uses and not seal well.
A little Teflon tape fixes that issue-then the tape wears instead of the fittings.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: For Any Welders Out There [Re: Sierra048] #4564581
11/05/17 08:58 AM
11/05/17 08:58 AM
Joined: May 2010
Posts: 9,063
North Carolina
spasm3 Offline
spasm3  Offline
Joined: May 2010
Posts: 9,063
North Carolina
You can buy a pan with a drain plug cheap enough. I usually don't like a lot of dorman stuff, but i have this pan and its going on when i change the fluid on the avalanche. It feels well made and has a nice drain bolt.

$35 and no welding. A few reviews about incomplete stamping, but mine looks fine and is flat.

https://www.amazon.com/Dorman-265-811-Transmission-Oil-Pan/dp/B002U6ELS4

Last edited by spasm3; 11/05/17 09:00 AM.

13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30
Re: For Any Welders Out There [Re: motor_oil_madman] #4564582
11/05/17 08:58 AM
11/05/17 08:58 AM
Joined: Dec 2004
Posts: 1,530
Pennsylvania
Slick17601 Offline
Slick17601  Offline
Joined: Dec 2004
Posts: 1,530
Pennsylvania
Originally Posted By: motor_oil_madman
I paid $30 for someone to tig weld a Dorman plug onto mine.


Good advice, you want TIG for this application.

Re: For Any Welders Out There [Re: Slick17601] #4564591
11/05/17 09:07 AM
11/05/17 09:07 AM
Joined: Nov 2009
Posts: 4,943
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 4,943
Houston, Texas
Originally Posted By: Slick17601
[quote=motor_oil_madman]I paid $30 for someone to tig weld a Dorman plug onto mine.


Good advice, you want TIG for this application.

It will leak or look like [censored] with any other method due to being so thin.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: For Any Welders Out There [Re: Sierra048] #4564594
11/05/17 09:08 AM
11/05/17 09:08 AM
Joined: Nov 2009
Posts: 4,943
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 4,943
Houston, Texas
I don't recommend the Dorman plug unless you're having it welded.


2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

Re: For Any Welders Out There [Re: tom slick] #4564603
11/05/17 09:17 AM
11/05/17 09:17 AM
Joined: May 2005
Posts: 2,202
Toronto, Canada
George7941 Offline
George7941  Offline
Joined: May 2005
Posts: 2,202
Toronto, Canada
Originally Posted By: tom slick
Thatís an NPT bung and plug, NPT isnít usually used on drains (especially automotive) because it tends to wear out after several uses and not seal well.


In this situation, NPT will do just fine. It is not sealing against pressure, so it does not have to be torqued heavily. Tape or joint compound (I prefer the compound) will lubricate the threads and ensure no wear on the threads.

Heavy truck axle drains are 1/2 in NPT. They have FPT on the axle and the MPT plug screws in flush so that it is not sticking down and risking damage if the truck is driven over a rock. If a flanged plug sealed with an o-ring is used, there is the danger of it getting sheared off by a rock and the driver only finds out when the axle loses all its oil and starts making horrible sounds or seizes up. I have drained the oil in many axles with MPT plugs and there has never been an issue with the drain plugs.


2006 GMC Sierra 4.3l, NV3500,G80 , Mobil 1 5W30, Dexcool.
1987 BMW R80 - sold
2015 Honda CBR300R

Staying out of the right lane a lot.
Re: For Any Welders Out There [Re: Sierra048] #4564607
11/05/17 09:20 AM
11/05/17 09:20 AM
Joined: Mar 2013
Posts: 4,786
The Midwest
skyactiv Offline
skyactiv  Offline
Joined: Mar 2013
Posts: 4,786
The Midwest
You only get about yes, half the fluid out when changing the transmission fluid. B&M is a long standing performance automatic transmission specialist and offers a drain plug kit for cheap. You'll leave a little in the pan how it's designed, but again, you never get all the fluid changed out regardless.

https://www.amazon.com/80250-Automatic-Transmission-Universal-Drain/dp/B00029WR78



Wife: 15' Audi A4 quattro 6 speed manual
Me: 13' VW GTI 3 door 6 speed manual
Re: For Any Welders Out There [Re: spasm3] #4564615
11/05/17 09:26 AM
11/05/17 09:26 AM
Joined: Dec 2014
Posts: 1,671
'murica
Ethan1 Offline
Ethan1  Offline
Joined: Dec 2014
Posts: 1,671
'murica
Originally Posted By: spasm3
You can buy a pan with a drain plug cheap enough. I usually don't like a lot of dorman stuff, but i have this pan and its going on when i change the fluid on the avalanche. It feels well made and has a nice drain bolt.

$35 and no welding. A few reviews about incomplete stamping, but mine looks fine and is flat.

https://www.amazon.com/Dorman-265-811-Transmission-Oil-Pan/dp/B002U6ELS4


^Correct answer. It's one of the only Dorman parts I would recommend.

Re: For Any Welders Out There [Re: Sierra048] #4564629
11/05/17 09:41 AM
11/05/17 09:41 AM
Joined: Sep 2017
Posts: 239
One Step Beyond
MasterSolenoid Offline
MasterSolenoid  Offline
Joined: Sep 2017
Posts: 239
One Step Beyond
Your on the right track.

What I did was,
* Buy a Hex Nut with the same thread as your current Drain Plug.
* Have Hex Nut welded onto (exterior) Pan.
* Drill Hole thru Pan.
* Use the same Drain Plug you were using before.

Once a year I now do a Drain-N-Fill of Trans Fluid.

Cost: My Nephew did the welding (= free).


2002 Ford Ranger
2 Wheel Drive
3.0 Liter Engine
Re: For Any Welders Out There [Re: Sierra048] #4564640
11/05/17 09:48 AM
11/05/17 09:48 AM
Joined: Jan 2009
Posts: 13,837
Illinois
tig1 Offline
tig1  Offline
Joined: Jan 2009
Posts: 13,837
Illinois
I have tig welded drain plugs for myself and others. Cost; Is the pan aluminum or steel?


2007 Ford Fusion 232,000 miles
M1 0-20 EP
2017 Ford Fusion 55K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters

Re: For Any Welders Out There [Re: skyactiv] #4564641
11/05/17 09:49 AM
11/05/17 09:49 AM
Joined: Nov 2009
Posts: 4,943
Houston, Texas
motor_oil_madman Offline
motor_oil_madman  Offline
Joined: Nov 2009
Posts: 4,943
Houston, Texas
Originally Posted By: skyactiv
You only get about yes, half the fluid out when changing the transmission fluid. B&M is a long standing performance automatic transmission specialist and offers a drain plug kit for cheap. You'll leave a little in the pan how it's designed, but again, you never get all the fluid changed out regardless.

https://www.amazon.com/80250-Automatic-Transmission-Universal-Drain/dp/B00029WR78








That's what I had welded on. Lol it's like $7 I didn't have faith in that plastic washer not leaking.

Last edited by motor_oil_madman; 11/05/17 09:50 AM.

2007.5 dodge cummins 6.7 liter. Chevron Delo400 15w40. 7000 mile or 250-300hr intervals.

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