What transfer case do I have?

[stutaeng]

Hello guys, I have a 2000 CCLB K3500 with 5.7 engine. I'm trying to figure out what transfer case I have. It's the manual lever on the floor. Seems like NP8 is a common code for NP246, but I have a NP5, and that's something else. Here are the RPO codes:


AG9
AJ1
AM7
AU0
AU3
A31
A95
B32
B33
B85
CMD
C6W
C60
DD7
DK6
D48
D55
E63
FE9
FK2
FK3
GT5
G80
JB8
KNP
K34
K60
L31
MT1
NA4
NF2
NP5
N33
P06
R04
SLM
UP0
UQ3
VB3
VK3
VR4
VXS
V22
V73
XHH
X88
YD3
YD6
YE9
YHH
ZHH
ZQ3
ZQ3
ZY1
Z82
1SB
1SZ
52D
521
6GK
7GK
74U

 

[Jglew82]

Yours should be an NP241, I believe. the NP5 code is for the steering wheel. Is there an "NP2" code on there you might have missed?

 

[stutaeng]

No "NP2."

I have "NF2." I double checked.

 

[stutaeng]

Here's the tag

You must be registered for see images attach

 

[Jglew82]

Can you crawl underneath and see the service tag on the TC? It should be an NP241c, but the tag will tell you for sure.

 

[stutaeng]

Yeah, that's what I'm planning on doing. Is it not weird that it is not indicated on the RPO tag?

 

[Jglew82]

Yeah, that's what I'm planning on doing. Is it not weird that it is not indicated on the RPO tag?

That is pretty strange...

 

[stutaeng]

I was reading this older article and they actually list (page 8 of 9) the t-case as Borg Warner?

http://www.lunghd.com/Downloads_and_Links/Xfer Case Identification.pdf

 

[andy396]

Does it have a PTO blank off plate?

 

[Jglew82]

Now I'm really curious to see what your service tag says. According to gm parts direct, yours (according to the VIN in your screenshot) should be 241C

You must be registered for see images attach