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Transfercase input shaft swap write-up.

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Old 05-16-2007, 07:48 AM
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I remember that feeling it can be a bit** to get off
Old 05-16-2007, 11:31 AM
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I got it all back together with no "extra" parts laying on the work bench, Im very thankful to you guys for doing the write-up, without it I believe some tool throwing would have been involved
Old 05-16-2007, 10:09 PM
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Here is a little info about the extra speed sensor that the 4l80e requires....

99-02 PCM's (Red and Blue pin locks)
The wires go in pin locations 22 and 23 (Red Lock)
Pin 22 is the Red & Black wire (high speed)
Pin 23 is the Blue &white wire (Low speed)

03 and up (Blue and Green pin locks)
The wires go in pin locations 22 and 23 (Green Lock)
Pin 22 is the Red & Black wire (high speed)
Pin 23 is the Blue &white wire (Low speed)
Old 09-20-2007, 09:30 AM
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I am getting ready to to do an Input shaft swap... Did any of you who have done this bother to do something like a Rebuild Kit while you had the t-case apart? OR did you reuse the seals and such when you put it back together?

I have 50,000+ miles on my truck, the t-case has not seen a lot of use in 4x4...
Old 09-20-2007, 09:37 AM
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There isnt any seal to replace other then the one you have to tear out to get the snap ring on the input side. Just use a little silicon sealant on the two halves when you put it back together. You can change the output seal if you feel like it. My t-case had 180K on it and everything looked new and it has seen ALOT of abuse. Get a GOOD set of snap ring pliers like craftsman or something it will make life alot easier.
Old 09-20-2007, 10:22 AM
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OK sounds good... Thanks!
Old 09-20-2007, 08:28 PM
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I had around 80,xxx miles on mine so It got a new chain and complete set of bearings.....
Old 09-22-2007, 03:47 PM
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Well, everything was going great... I had the case apart in under 20 minutes and then, the **** hit the fan... The Seal on the Input shaft will NOT come out, wound up tearing a bunch of the rubber up and it still will not budge.

Now I have to take it to my trans shop and see if they will be nice enough to remove the god damn thing, ordered a new one from Napa and that will be here Tuesday... What a waste of a day, didn't get a damn thing on this project...
Old 09-30-2007, 05:27 PM
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DONE... Finally! What a PITA but, worth doing yourself to save the Labor cost at a shop...
Old 10-28-2007, 01:34 AM
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just a small bit of help maybe not. The 12mm allen can also be a t60 star wrench which we have at automotive stores. didn't have a 12mm allen. i'm lookin for the input seal p/n tho cuz it's next to impossible to get it without makin it look like a chihuahua had been chewin on it. anybody that knows the part number to the seal, that would be helpful...


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