CK5
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Transmission Gasket

Rear end type gear oil does not actually have a bad smell. I found out what does many years ago with my'79 F150.
I had changed the rear end fluid to get the water out, we had to cross sloughs and creeks a couple of times a day during hunting season in the swamp, and no amount of sealing or vent hose would keep the water out.
As long as we kept driving them, the water did not settle out and rust anything. But you had to be sure to drain everything as soon as the season was over.
So, I decided to do it myself. Drained out the old fluid and water. Nasty smell. Pumped in the new 90 weight, did not notice much of a smell.
Few days later, I started noticing popping and grabbing when I went around a corner.
Asked a mechanic friend, and he reminded me that I had to put in the friction modifier. Gave me a small tube of it. About an ounce or two as I remember.
As soon as I took off the cap, There Was The Rear End Grease Smell!!

You think the oil smells bad, that stuff is the smell concentrated!
Luckily I did not get any on me. That was about 1983, and I think I would still be smelling it if I did....
 
The original posi-traction addtive with genuine whale sperm is worse than gear oil as far as stench...much worse!..

I had a display of a dozen bottles of that additive on my counter at the parts store--one Monday morning when we arrived at work,the retail part of the store smelled like death..we traced the source to one of the bottles on the counter--a heating duct nearby evidently heated the bottles enough for one to ooze out half of the fluid,which then soaked into the cardboard display box,and my parts counter catalogs..

I worked there 18 months after that happened,and despite our best efforts to clean up the spill and kill the odor with a multitude of various products,nothing seemed to eliminate it--some things masked it for awhile,but it always came back,especially in the hot weather!..
I hated going to work even more every morning after that happened..!
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The original posi-traction addtive with genuine whale sperm is worse than gear oil as far as stench...much worse!..

Bob, didn't you mean Sperm Whale Oil? I don't know the extraction technique for collecting whale sperm but I don't imagine there are many people willing to put in the training, unless this just cums naturally:surepal:
 


Far as I can recall the bottle said it contained "whale sperm"..not sperm whale oil...
I'm not sure how they harvested it,maybe a female whale was involved and they collect it from her "receptacle"...either that or they just..:weapon14::eek1:..
Anyways,its all synthetic today,no more whale sperm collecting allowed..
 
th350 = square pan with 1 corner 45* cut off .

th400 - texas shaped pan .

700r4 / 4l60-e = rectangle pan .

bolt count i got no clue . i know the shapes .

:rotfl::rotfl: torque spec not bolt count . . . . sorry . . . :haha:
 
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Th350 pan bolts: 10 to 12 ft lbs according to my manual
 
The same manual has this for th350 torque specs...
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I always just used the Felpro filter and gasket. Never had a issue. I always just hammered the stock pan back flat before reinstalling. I always just used a quarter inch drive ratchet to tighten down the bolts. Makes it a bit harder to over torque the bolts.
 
Tin valve covers and trans pans are usually the first things I throw in the trash...

I like cast aluminum stuff... I've heard that cast pans stiffen up the case a little bit, but I really don't know how much truth there is to that...
 
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