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Transfer case fluid?

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Old Oct 8, 2008 | 07:47 AM
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Transfer case fluid?

Ok, I did a search and really didn't find what I was looking for.

Basically all I need to know is what brand/type of fluid should I use when I do a fluid change?
 
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Old Oct 8, 2008 | 07:50 AM
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The transfer case takes ATF.(Mercon or Syn) I changed mine in the spring with Amsoil (Synthetic) ATF. Only took 2 quarts.
 
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Old Oct 8, 2008 | 08:02 AM
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Is it as easy as it looks?
 
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Old Oct 8, 2008 | 08:24 AM
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Originally Posted by kenneBF250V10
Is it as easy as it looks?
No, it's even easier

But yeah, remove upper fill plug, remove lower drain plug and make sure you have a bucket underneath it ...
 
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Old Oct 8, 2008 | 08:37 AM
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Thanks guys! The rear diff gets it's new Mag Hytek cover and fluid and the transfer case gets new fluid this afternoon.........after I put the supercharger back on.
 
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Old Oct 8, 2008 | 11:30 AM
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Take into account that ATF is thin and tends to shoot out far and fast. If you back the top plug out until its almost unscrewed before you pull the bottom plug it helps slow the fluid down.

Those Mag-hytec covers are purty, but I'm too cheap I went with an 08' diesel cover.

Whats up with the blower?
 
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Old Oct 9, 2008 | 07:00 AM
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Well, all fluids are changed and the blower is back on.

Get this. I removed the fill plug first and it's a good thing I had a drain pan held up next to it when I removed it. As soon as that thing came out fluid started coming out, just about a quart. When I removed the drain plug I got another 2 quarts out. Now, the fluid that came out was real thick (like motor oil) and it was dark colored just like motor oil. I don't know what the deal is there. I've had this truck since it was new and I've never had any service done to the transfer case, bad on my part. The fluid in the transfer case is just one of those things that I never thought to change. However, I don't understand how so much fluid could be in there and not to mention the color of it. Anyway, I let it drain good and added AMSOIL ATF. It took a little over 2 quarts to fill it.

The rear diff was easy but stinky. I remembered from the last time I changed the rear diff fluid that it stunk but I don't remember it stinking this bad. WOW Anyway, I cleaned out the housing really well and surprisingly it had hardly any sludge in it. I had to take a fine flat file to the mating surface on the housing to remove a couple of high spots and as far as I know so far, it's not leaking. Those Mag-HyTek covers sure are nice. The drain hole and the fill hole which also has a dipstick sure does make it nice for servicing.

For anyone interested in getting these covers I found them fairly cheap on ebay. I only paid $207 for the rear one and shipping was $20. That's cheaper than any other place I found.

As for the blower, this is the 4th time that I've had to send it back to KB since I've had the thing. It's always been for the same reason, either oil leaking externally or internally or both. This time is was both. I love having the added extra power but this thing as been a pain in my *** since I've had it. KB acknowledges that there is a problem with it but since they discontinued the kit all together they can't replace the compressor since it's not made anymore. There's more to follow on this story though because there's possibility that they may replace the compressor with a high liter one if they can adapt it. The compressor I have now is a 2 liter and the manager there that I spoke with said they may be able to adapt a larger one. I'm suppose to be getting a phone call by the end of the week but I'm not going to hold my breath.
 
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Old Oct 9, 2008 | 09:00 AM
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Weird that KB wouldn't use a generic compressor - what's so unique about it for the V10? Snout length maybe?

For the transfer case being overfilled, it didn't get water in it did it? I'd check the breather is still there (if there is one, don't remember).

For the stinky rear (pun intended), do you have a limited-slip?

Also, for anyone thinking of rear-end covers, consider the 2008 stock one for the diesels, finned aluminum, and real cheap, something like $40 or something crazy. No dip stick, and probably no drain plug, but ... you can always use a hand-pump or electric pump to get the lube out through the fill hole...
 
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Old Oct 9, 2008 | 09:56 AM
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Originally Posted by krewat
Weird that KB wouldn't use a generic compressor - what's so unique about it for the V10? Snout length maybe?

For the transfer case being overfilled, it didn't get water in it did it? I'd check the breather is still there (if there is one, don't remember).

For the stinky rear (pun intended), do you have a limited-slip?

Also, for anyone thinking of rear-end covers, consider the 2008 stock one for the diesels, finned aluminum, and real cheap, something like $40 or something crazy. No dip stick, and probably no drain plug, but ... you can always use a hand-pump or electric pump to get the lube out through the fill hole...
Not sure what the deal is with the compressor, they didn't give me any details. I'm sure though that it's very unique to the V10 by virtue of it's size and shape for clearance purposes when the hood is closed. Believe me, it's a very close fit. I used to have the factory hood liner but ended up taking it out because the fill plug which is slightly raised by maybe 3/8", wore a hole through it.

As for the transfer case, I don't think any water got in there. The fluid that I took out wasn't foamy or anything. I just wonder about the color and thickness of it though. It was a lot thicker than ATF.

Yes I have limited-slip with 4.30 gears. If you're going to ask if I added friction modifier, the answer is yes. I went to the Ford parts place I use and picked up a couple of bottles.

It's true that the '08 covers are much cheaper but the Mag-HyTec is soooooo nice............not to mention the ability to hold much more fluid. I don't regret for a second spending the extra coin. I have to investigate a squeaking noise I have in the front driver hub and when I tear it apart I plan on changing fluid and replacing that cover as well.
 
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Old Oct 9, 2008 | 11:35 AM
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I wasn't aware of the problems with the KB units. Definatly a heads up for anyone who has one or wants to buy a used one.

Man 3 quarts of fluid inthe transfer case is quite a bit. Sounds like a weird situation. I changed my transf fluid at about 28k and it was a little dirty, was concerned about shavings and etc from new so I changed it.

Thats a good price for the Maghytec cover. I would of prefered one but the gear oil and ATF to do the front/rear diffs and transf case was over $100 so I went cheap with the alum 08' cover. With the SC the extra capacity should help quite a bit.
 
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Old Oct 9, 2008 | 11:38 AM
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Originally Posted by kenneBF250V10
It's true that the '08 covers are much cheaper but the Mag-HyTec is soooooo nice............not to mention the ability to hold much more fluid. I don't regret for a second spending the extra coin. I have to investigate a squeaking noise I have in the front driver hub and when I tear it apart I plan on changing fluid and replacing that cover as well.
Just putting it out there that there was an alternative for people reading this

As for the LS additive, that's the stinky part
 
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Old Oct 9, 2008 | 12:42 PM
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Originally Posted by dkf
I wasn't aware of the problems with the KB units. Definatly a heads up for anyone who has one or wants to buy a used one.
I'm not sure if the couple of other folks on here with the kit have had this problem but KB told me that they haven't had any come back as many times as mine has for the leaking issue. They admit that something is wrong but they don't know what it is.

The oil level on this thing is very critical. As a matter of fact, the safe area on the dipstick are two lines that are only about an 1/8" apart. I'm the most **** person I know when it comes to fluid levels, probably more than I need to be, so I don't know what the problem is.

A word of warning to the other KB owners, check the oil level OFTEN. If you don't you're asking for problems that you don't want any part of, expensive problems. Luckily for me, they haven't charged me anything for the times that mine has been back simply because they know I'm not at fault.
 
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Old Oct 9, 2008 | 06:41 PM
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The seal between the trans and the transfer case maybe leaking, this would account for it being overfilled. The fuild comes in from the trans, because the seal is leaking. Has you transmission been low on fluid? I have had this happen to me on 2 trucks I have had.
 
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Old Oct 9, 2008 | 08:39 PM
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Can mercon V be used in the x-fer case?
 
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Old Oct 9, 2008 | 10:19 PM
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Originally Posted by motown
The seal between the trans and the transfer case maybe leaking, this would account for it being overfilled. The fuild comes in from the trans, because the seal is leaking. Has you transmission been low on fluid? I have had this happen to me on 2 trucks I have had.
I've been scrolling down, wondering when somebody would explain the problem! It happens all the time (especially when you drive the high milers like me). I don't worry about it a whole bunch, because I run the same oil in the tranny as the transfer case - I just keep checking both.
 
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