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Transfer Case -- I used the wrong fluid! What now?

You made a reference to having the 205 in 4low, and it not seeming like it was in 4 low.



Keep in mind one important thing.........the low range in a 205 sucks, compared to a NP208 or even better the 89-91 NP241. Your going from 2.62 low range of the 208.............to 1.96 low range of a 205......so thats a big difference.

Some guys swear by the 205 for strength........while cursing it for its crappy low range. I guess there is a trade off somewhere along the line.

I'd take either T-case......but personally prefer the NP208.........because I dont run high horse power motors, or rock climb..............but I love that good low range that a 208 or 241 offers for altimate pulling power.
 
To each his own.

A lower range is not as good for my use as for most folks here. Since I do most of my playing in mud, a 205 is just about perfect.
Its low enough for crawling through deep stuff that might have stumps in it, but fast enough to clean the tread if I have to power through gumbo.

In fact, most doublers would do a lot of sitting in one place slowly turning their tires.

But, for rock crawling, lower is better.
 
Shift pattern on my 205, from dash back is 4lo,n,2hi,4hi. 4 high is all the way back towards the center console, and the 4 low range on the 205 is definitely not the best, but it works well.
 
I agree. For mud and snow the np205 gearing is great and bulletproof (especially if running a big block and tire over 35"). Rock crawling is not a np205's forte.

Fordum said:
To each his own.

A lower range is not as good for my use as for most folks here. Since I do most of my playing in mud, a 205 is just about perfect.
Its low enough for crawling through deep stuff that might have stumps in it, but fast enough to clean the tread if I have to power through gumbo.

In fact, most doublers would do a lot of sitting in one place slowly turning their tires.

But, for rock crawling, lower is better.
Click to expand...
 
Just for future reference, gm switched to ATF in the np208 and np241 and newer cases due to the use of tapered bearings. Gear oil is too thick to properly lubricate the bearings.
 
Believe it or not atf will actually clean out some of the gunk that oil might build up in your TC atf seems like it has some sort of detergent quality.
 
atf is a high detergant oil.

and if you got a dirty engine sub out 1qt reg oil and add 1 qt atf and drive for 500 miles and do oil change again and see just how much crap comes out / black oil.

best part is wont hurt seals / gaskets / bearings at all. :D

had a old timmer tell me this trick . and recently had a guy with tick in motor. did this as i told him and fresh 5-30 oil spec for his and now its gone and smooth.
 
ChevyBoy2010 said:
Just for future reference, gm switched to ATF in the np208 and np241 and newer cases due to the use of tapered bearings. Gear oil is too thick to properly lubricate the bearings.
Click to expand...

Is that all tapered bearings, or just the ones in those units?

Because if its all, then I have a lot of oil changing to do..........:dunno:
 
Fordum said:
Is that all tapered bearings, or just the ones in those units?

Because if its all, then I have a lot of oil changing to do..........:dunno:
Click to expand...

Can't be all, because wheel bearings are tapered roller bearings... in my 16 years experience of designing machinery, I have seen atf, gear oil, and grease being used in tapered bearings. The choice of lubricant has more to do with the clearance in the bearing itself and the application it is being used in.
 
kennyw said:
Can't be all, because wheel bearings are tapered roller bearings... in my 16 years experience of designing machinery, I have seen atf, gear oil, and grease being used in tapered bearings. The choice of lubricant has more to do with the clearance in the bearing itself and the application it is being used in.
Click to expand...


Kinda my point...........
 
I'm pretty sure the main reason they changed to ATF was because gear oil was too thick for the oil pump in the NP208 and NP241.
 
jekquistk5 said:
I have two sticks to control my 205, and 1 for my 203 whats my pattern??? :doah::doah:
Click to expand...

The secret is to just keep pulling them back and forth until you are moving at the speed you want to go..........:rolleyes:

Actually, I think that ORD has instructions on their website. If not there, then I would have to look around. I have seen it somewhere.
 
Fordum said:
The secret is to just keep pulling them back and forth until you are moving at the speed you want to go..........:rolleyes:

Actually, I think that ORD has instructions on their website. If not there, then I would have to look around. I have seen it somewhere.
Click to expand...

Actually that was my plan. I have worked it out in my head what it will be. But until it starts to move I really don't know hahaha
 
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