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I got one of those little $8 drain plugs to install in the stock pan on my TH350 trans. Took the pan off and put the plug at the rear of the pan in the center. Tested for leaks, no problem. Went to intall on the trans and found out that the inside piece of the plug hits the valve body. Looks like the plug would fit at the rear pass. side of the pan. So now I need another pan. Anybody have a stock 350 pan for sale? (I posted in the parts section also.)
I put mine on the backside of the pan..about halfway up on the side. I won't be able to drain all of the fluid, but it won't slop all over me with just 1/2 pan of oil.
Back in the 70's I decided to add a plug to my '77. I dropped the pan and paying particular attention to obstructions, found a clear area in the pan to install the plug. I took the pan to a local welding shop and had then tack weld a 1"X1" X 3/8" square in that spot on the inside of the pan. I took it home and drilled and tapped it for a standard oil pan plug.
Never had a leak and never had to be concerned with it working loose when I installed or removed the plug. It also allowed me to drain most of the oil from the pan since it only stuck up about 3/8" with the plug removed. Someone out there is probably telling all their friends about how their TH350 came stock with a pan plug...
I got a pan today from Artsvette73. Put the plug in the right spot by drilling a hole. (No welding skills or equipment here Noonie.) Installed the pan and put fluid in the trans. No leaks. Another job well done, the hard way.
You can just weld up the wrong hole in your pan and weld a nut in a good location.
WOW! That really does look top notch and very functional too. PM me with the thread spec and your address and I'll send you a Dimple. You may have come up with an alternative to the FilterMAG Transmission magnet assembly.
WOW! That really does look top notch and very functional too. PM me with the thread spec and your address and I'll send you a Dimple. You may have come up with an alternative to the FilterMAG Transmission magnet assembly.
Didn't want to fool with aquiring the proper wall thickness tubing and threading it, so I just used a 1/2"- 20 nut, turned the hex off on a lathe and welded it to the pan. Put one of the good magnets in the pan just in front of it. Standard bolt with a copper washer.
Btw, I can get magnets that you can't pry apart by hand.
Not a new idea, had a 1970 650 Yamaha and it had 2 drain plugs that were probably 1 1/4" dia with huge full magnets on the inside surface.
Metal at every oil change, so I've been using these ever since.
Believe it or not this story actually started with a Summit alum pan with drain, stock capacity. That pan could not be installed while using the factory shifter cable bracket, so I returned it.
I got one of those little $8 drain plugs to install in the stock pan on my TH350 trans. Took the pan off and put the plug at the rear of the pan in the center. Tested for leaks, no problem. Went to intall on the trans and found out that the inside piece of the plug hits the valve body. Looks like the plug would fit at the rear pass. side of the pan. So now I need another pan. Anybody have a stock 350 pan for sale? (I posted in the parts section also.)
From: Las Vegas - Just stop perpetuating myths please.
My other vehicles are all autos and i have wanted to do this for ever. Well now that i bought a trans temp gauge for my truck (cummings powered) it needs to happen. The trans specalist mechanic that does all my trans service says he puts a drain in all of his vehicals and does the fluid change every time he does a regular oil change. As a trans specalist his knows that once the trans fuild changes color and starts to smell its too late.