NEED HELP Transfer case replacement

Lance

Original poster
Member
Feb 12, 2023
1
West Virginia
So I have a 05 tahoe 5.3 z71 with the np8
I'm replacing it with a np8 from an 03 trailblazer. Any thing i need to be aware of or on the lookout for. Thanks in advance
 

mrrsm

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Supporting Donor
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Oct 22, 2015
7,750
Tampa Bay Area
Visit THIS Site and compare the information listed in their on-screen catalog ... or just give them a call and ask:

 
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Mooseman

Moderator
Dec 4, 2011
25,358
Ottawa, ON
They're not the same and it won't swap in. The GMT360/370 TC is an NV226 and the Tahoe's is an NP246.

NP8 is just an RPO code. All it means is a 4WD 2 speed selectable transfer case. It doesn't say which transfer case is used in a particular platform.
 

mrrsm

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Oct 22, 2015
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Tampa Bay Area
This Transfer Case Information Resource is also helpful to have:

 

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  • GM-Transfer-Case-CD-Web1.pdf
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