Question on changing tranny fluid and stock breather hoses....

[Dabba]

2 questions, first i have a th400. No drain plug, how exactly does one change the fluid without getting an atf bath. I dont want to buy a new pan now or doing any real work, if its a pain i may have my mechanic do this. And second, what has breather hoses and where do they end? I know the diffs do. I want to extend them up to the top of the hood, im not planning any serious mudding but ya know, just in case. Thanks

 

[Lunatic]

K......Trans pan, no plug.....Fun.

If you take your ride to the mechanic for the oil pan - Let him get the trans pan.....lmao....

Loosen all the trans pan bolts, but do it in a particular order. Concentrate to the corner which is clearest of anything blocking it.....That will serve as a "spout" as you lower the pan. Its best to take the corner bolts of the chosen corner out first. I remove two back from the corner, each side.

Then, go from one side of the corner to the other, loosening bolts genrously. The idea is to form a grade/decline to the corner you chose. After you get the pan cracked (It will happen suddenly, BTW), you can start removing bolts, again - one per side of the chosen corner. Eventually, your pan will be in a leaning way and draining.

Once the majority is dumped, the rest is cake.


Vent tubes.....Generally speaking - There is one for every major component, on the top side. The diffs should have an actual line. A transmission basically has a nipple and no line (Not on my own anyway - 700r4). Its about 2" long maybe. The transfer has one also. The engine has the intake.


Hope it helps !!



Troy B
Ft Hood, TX

 

[Dabba]

thanks, niple? where? gotta fine those little buggers and extend them

 

[Lunatic]

Nipple - Sorry...

More like rigid tube. On the top of my r4 it looks like a little horn trumpeting

You just need to add a line is all after you locate the tube.



Troy B
Ft Hood, TX

 

[Dabba]

ahhh, i see, hard to get to, like is it right between the tranny and tranny hump haha

 

[Thunder]

If you use a suction pump to pump ATF out the tranny pan it makes the job a piece of cake. Just put the tube down the the tranny dipstick tube and pump till you cant get anymore out. Leaves about a quart in there so its easy to drop the pan without getting a bath and making a mess.
Use either one of those cheapo suction pumps you can get at an autoparts store Or one of those electric drill powered pumps.

 

[BILTIT]

A very wise choice to extend the trans vent. I sunk my truck awhile back and filled the trans with water, took alot of flushing to get it all out.

 

[Dabba]

anyone know where the vent is on the tranny?

 

[BILTIT]

(Vent=breather, same thing) You identified it above, right between the tranny and tranny hump. Its tight but doable.

 

[Dabba]

thought so, okay then, ill take a looksee, maybe i can squeeze my ass up there. Its high enough that im not so worried, im not burrying the truck again. But the tcase and diffs im gonna mess with