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Old 08-25-2015, 03:00 PM   #425
NastyBuzzard
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Join Date: Oct 2013
Location: Saluda, SC
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Re: 1987 GMC V1500 Sierra Classic LS swap/build

So I have a question, mostly because I came across this in someone elses thread that was using a 4L60E & passenger side drop NP241 transfer case.

They had to buy and use this adapter, #15005474. I understand that the 2001 adapter wont work, but I used the adapter from my 700R4 and I think I did end up with less driveshaft engagement than normal but I wasn't sure. I asked about it on here but it was never answered. So I will ask again to be 100% sure.

01 on bottom and 87 on top.



87 right and 01 left



This is the amount of penetration I am getting. The wear on the driveshaft is of course where it used to stick into the tcase.



Only getting 3-1/8" of penetration.



I have read that the #15005474 is 5" long/deep so I am not sure how it compares to the other adapters I have.

Any insight, I don't want to run this and have issues or break anything prematurely.
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