Skip the auto shop - Our mechanics make house calls

Q: Problem with transfer case

asked by on

I purchased a used transfer case from a 99' suburban to replace the transfer case in my 05' Tahoe. I was told I needed an NP8 transfer case. After I removed the transfer case from my 05' Tahoe I realized the connector on the transfer case motor is different from the 99'. The 05' connector is 8 prong and the 99' connector is 4. Did I buy the wrong transfer case? Can I buy an adapter? Or an I buy the correct transfer case motor and put it on the transfer case of the 99' suburban that I'm going to use in my 05' Tahoe?

My car has 215000 miles.
My car has an automatic transmission.

The two vehicles had different types of transfer case assemblies depending on if it has part time and automatic full time type systems. The differences between the two transfer cases may be more than just the shift motor swap. If you took the transfer case out of a part time suburban vehicle and tried to put it in a full time automatic type system, it may get damaged when driving. Also the internal gearing could be different between the two vehicles but that would be hard to tell. You can take a chance and try it or get the correct one for your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Problem with transfer case

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Rough idle

There are a number of things that may cause a rough idle. A rough idle may be caused by things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen...

Q: check engine light on

There is a special service campaign from the manufacturer for this problem. Your vehicle may be covered for the repair under service bulletin number 15824-01 dated August 9th 2016. The bulletin covers codes P0010 and P0013 for the intake or...

Q: I changed starter alternator and battery but after 2 weeks i came outside and i needed a boost.

You may have a failing voltage regulator that could be allowing the alternator to supply too much or too little amperage to the battery resulting in the battery never maintaining a consistent charge as it is designed to. The voltage...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...