swapping fluids (tranny-t-case...)

[Boonie Buster]

so i have a 700r4 that is getting mated to a 203/205 doubler. I had a 231 behind it and they shared the same fluid...ATF. Now, i read that the 203 is RECOMMENDED to use 30wt... I don;t care, but do the 700r4 and 203 shared a thru opening that the fluids could mix? to play it safe I WAS going to jsut use ATF, but if i can i will use the recommended oil, if there is no way the 30wt can get into the trans fluid... that would be a biiiig no-no.

 

[Hip]

there should be a seal on the back of the tranny keeping the fluids seperate.

 

[Boonie Buster]

there should be a seal on the back of the tranny keeping the fluids seperate.

ok, that is what i needed to know.:awesomework: thanks hip!

I will send you the bill if i find any gear oil in my fresh trans:fawkdancesmiley: :haha:

 

[Hip]

ok, that is what i needed to know.:awesomework: thanks hip!

I will send you the bill if i find any gear oil in my fresh trans:fawkdancesmiley: :haha:

how bout you just go verify there is or is not a seal....:fawkdancesmiley:

 

[Boonie Buster]

how bout you just go verify there is or is not a seal....:fawkdancesmiley:

no no, you said, on the internet, that is was true, and as i recall everything you hear/read on the internet is true, thus making you responsible for the fate of my drivetrain....leally binding documents now show that you have said on the internet that it is true.:fawkdancesmiley: :haha:

 

[skrause]

no no, you said, on the internet, that is was true, and as i recall everything you hear/read on the internet is true, thus making you responsible for the fate of my drivetrain....leally binding documents now show that you have said on the internet that it is true.:fawkdancesmiley: :haha:

Ah, but he said "should be" not "there is". :fawkdancesmiley:

 

[Corey Y]

The 203 has a seal on the input shaft to keep the ATF in the trans, and the gear oil in the 203. Use 90wt in the 203/205, they are all gears.

 

[Boonie Buster]

ok, ya i figured it would be best to use 90wt:awesomework: just wanted to make sure it wasn;t going to mix with the ATF

 

[Corey Y]

If you have the proper seals in place, the fluids won't swap.

 

[Boonie Buster]

ya, i was going to put a new bearing and seal and junk in it before reassembly (the 203):awesomework:

 

[Binder]

Proper seal being a double lipped seal. If it'a a single lip the fluids could go one direction but not the other.

 

[Totalled]

The 203 originally used 30 wt because of the chain drive. Since you're only using the reduction housing with gears, feed it 90 wt.

 

[Gaylord]

Now that the tech part is done. Swapping fluids is all good :redneck: