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Shift Cable Adjustment??

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Old 05-28-2008, 10:13 PM
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Default Shift Cable Adjustment??

Is there any way to adjust the shift cable? I am buttoning up my 4L80 swap and the cable seems to be short and will not place the gear selector all the way in park. Without being attached to the selector on the trans, running the cable thru the gear positions and back to park, the cable attachment seems to be about 3/4" shy of the selector. I can pull the cable to within 1/4" of the selector and can even attach it but as soon as the column shifter is moved down into a selected gear, it will not go back in park without getting under the truck and manualy pushing the trans selector into park position. Anyone else ran across this with their 80 swaps?
Old 05-28-2008, 10:46 PM
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Do you have the 80E shift cable bracket?
Old 05-28-2008, 10:58 PM
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Yes, I am using the shift cable bracket that came with the 4L80. I measured both of them and from what I recall, there is no way the 60 bracket would fit on the 80.
Old 05-28-2008, 11:10 PM
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Originally Posted by BigKID
Yes, I am using the shift cable bracket that came with the 4L80. I measured both of them and from what I recall, there is no way the 60 bracket would fit on the 80.
OH yea, i forgot bout that.
Im not sure what it could be..

TTT for ya.
Old 05-29-2008, 12:03 AM
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The place where the two halves of the cable connect can be adjusted. It's along the outside of the driver's side frame rail. There's one piece spring loaded that you pull back, then there's a blue clip underneath that you can pop partway off and adjust the cable.
Old 05-29-2008, 08:33 AM
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I saw that yesterday and was hoping that was were it could be adjusted. It was getting dark so I didn't study how it attached too closely.
Once the spring and clip are removed how is the cable adjusted? Do the two half thread into each other?
Old 05-29-2008, 09:14 AM
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Had a buddy pull the procedure from AllData and send it to me. Looks pretty simple as the cable is self adjusting.
-With all connections made, shift lever at column and transmission in park position, pull back white cover on intermediate cable connector, pull up on center tabs on neutral colored lock.
-push two cable halves together untill inner blue spring is completely compressed then release allowing blue spring to tension/adjust cable.
-push down lock and push back white cover conceling neutral colored lock.
-test gear selection. If all gears are not acheived, repeat procedure.
Old 05-29-2008, 09:47 AM
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Something like that I didn't have the actual procedure when I did it...I just kinda screwed with it until it worked, lol.
Old 05-29-2008, 03:52 PM
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Looks like I need a new cable. As I was fooling with it, it got harder and harder to shift and eventually move but from reverse to neutral. I took the whole cable out and it feels like something in the upper cable is binding. The cable is supposed to be two pieces but mine looks like only one. The part number on mine does not look like a good part number either.
Old 05-29-2008, 04:01 PM
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Found it... 12477639. $90 at GMPartsDirect. Hopefully my buddy at the dealership can get it cheaper than that. I am sure it will have to be ordered so no chance in having the truck going by the weekend... again.


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