Question about 1999 Chevrolet K2500

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Where can i get a manual to rebuild my np 261 transfer case ?

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Posted on Jan 02, 2017

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SOURCE: I am rebuilding a np242 transfer case

There are 2 websites that u can pay a fee for access to repair info for your year, make, model, vehicle. They have a selection of varying time periods to have access. U can print any info off their site for future reference for your particular vehicle.
They are: alldata and eautorepair

Posted on Jan 02, 2009

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SOURCE: transfer case problem


Posted on Feb 09, 2009

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SOURCE: 1999 chevy blazer transfer case rebuild

I think one of the autozone rapair guide have th prosses. Check there to see if they have it.

Posted on Dec 03, 2011

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Error message repair 4wd

I guess you probably don't know what transfer case you have ?
Refer to
Transfer Case Description and Operation in Transfer Case - NVG 149-NP3

Transfer Case Description and Operation in Transfer Case - NVG 246-NP8

Transfer Case Description and Operation in Transfer Case - NVG 261-NP2

Transfer Case Description and Operation in Transfer Case - NVG 263-NP1

The NVG 246 EAU provides 5 modes, Auto 4WD, 4HI, 4LO, 2HI and Neutral.
The four manual mode, or range gear positions, of the NVG 261 transfer case are:
2HI - 2 wheel drive high range

4HI - 4 wheel drive high range, part-time

4LO - 4 wheel drive low range, 2.72:1 gear ratio reduction

N - Neutral, 4 wheel

The NVG 263 transfer case provides the driver with 4 manual mode/gear positions:
2HI - 2 Wheel Drive high range

4HI - 4 Wheel Drive high range

4LO - 4 Wheel Drive low range


With the info I've given you ,you should be able too now !
There is probably a code stored somewhere !
DTC B0790 DTC B2725 DTC C0300 DTC C0305 DTC C0306 DTC C0321 DTC C0327 DTC C0359 DTC C0374 DTC C0379 DTC C0550.

Jan 31, 2015 | 2004 Chevrolet Silverado 2500

1 Answer

Can I swap in a np 244 transfer case to replace my ailing np 243j without much hassle?

I having once owned a Trans Shop I would
ONLY rebuild your original factory unit

NEVER,NEVER install any used transfer or
trans, in any vehicle ( that is junk out & junk in)

Doubt anyone knows your exact questions answer

Not even the trans shops that work on them

If you do not do all your own work,your in a tough spot

Then you get a rebuilt unit from Jasper Engine & Trans
or other similar company & you get a warranty

Who will you get to diagnose the issues & R&R the transfer?

If your not the one doing ALL the repairs-- your in for an expensive
& possibly unhappy situation-- down the road

Unless you get a reman from a dealer

All trans shops I know, install a used salvage yard unit,then the
problems continue

Been there,done that

Just a heads up

My question: Why on a 2004 Vehicle, do you even have a problem?

Did it leak & run dry

Was it used when it wasn't working properly & continued on anyway?

Everything fails for a reason

Best find out why, before you start pulling out heavy components,
that may not be the issue

Nov 23, 2014 | Dodge Cars & Trucks

1 Answer

Z71 transfer case

Transfer Case
NVG 236 and 246 Auto-Trak II Fluid Gm P/N 12378508 NVG 261 and 263 Manual Transmission Fluid GM P/N 88861800

Aug 18, 2013 | Cars & Trucks

1 Answer

2003 GM 2500HD 6L A/T manual shift 261 NP t-case. My 4X4 stopped working, no noise, nothing. I checked the front actuator, it's fine. Transfer case shifts fine, but does not engage... any ideas?

there may be a vacuum line that engages the hubs, that has came off, it has happened to me before, get under it and look for a loose vacuum line near the transfer case

Feb 03, 2013 | Cars & Trucks

2 Answers

I dont know what kind of transfer case to look for, i dont know what modle my transmission is and transfer case is, i have a 2002 chevrolet silverado 1500HD please getback to me asap !!!!

The transfer case has a label on it with all the info

Trans is should be a 4L60E ,you got the year & can count
the pan bolts & see the pattern

Don't be swapping parts with other peoples junk

If you have trans or transfer problems, keep yours &
fix them.

No such thing as good used parts

Jul 27, 2011 | 2002 Chevrolet Silverado 1500HD

2 Answers

Im looking to find out what model transfer case is in my 2001 chevy silverado 2500hd with a 4l80e transmission. It is a 3 button automatic transfer case.

Here`s how you can find out.Go into your glove box and at the bottom you will see a white label about the size of a credit card.It will have a bunch of numbers and letters.Look for the N letter and then see if you have np,np1,np8,or np2.Np is a 149 1 speed automatic.The Np1 is a selectable.The Np8 is a 236/246 2 speed auto and the Np2 is the 261 2 speed manual.There is also tag on the back of the transfer case that will tell you what type it is.Hope this helps.Good luck.

Dec 01, 2010 | 2001 Chevrolet Silverado 2500HD

1 Answer

Transfer case broken

there is a round tag on transfer case. probably in the back of case (faces rearward on truck). It'll say something like np-205 or np-208.

Apr 16, 2009 | 1987 GMC Suburban

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