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Transfer Case Shift Problem NP263HD

July 8, 2014 - Author: bartbarton

I have a 2006 Chevrolet 3/4 ton heavy duty 4WD pickup

Question:  While the truck is in motion, NP263NP263NP263when I shift electronically from 2wd to 4wd the shift isn’t smooth and it sounds like gears grinding, but it will shift into 4wd. Shifting back into 2wd is fine (makes sense). I suspect the problem is with the transfer case. I would appreciate any information from your experience what could cause this problem?

Answer:    A few different problems can cause this to happen.  It could be just a worn mode syncro (inner) #701-1D , if that’s the case you need part number 401701-1 your cost $33.93.  And mode syncro (middle) #701-3D , if that’s the case you need part number 401701-1 your cost $42.92, mode syncro (outer) #701-5D , if that’s the case you need part number 401701-5 your cost $50.900.

Suggest you start by checking the fluid level and condition, the rear case has a tendency to wear a pin hole under the oil pump in the rear case resulting in a low oil level and damage to the mainshaft and drive hub creating premature synco wear also.  If the case has a whole you will need the following parts:  Item 760-2A Case Half Rear NP263 STD part number MWTMG620001 your cost $195.00.  Drive Hub / Bushing (splines into Drive Sprocket 2 piece syncro part number 401606 your cost is $48.98. Item 672D Main Shaft (49 Spline Pump) NP263HD, part number MWTNV48714 your cost is $199.89.

Other items you need will be Gasket and Seal Kit part number TSK261 your cost $39.99 and Chain item 700E 1.5″ wide 42 links part number MWTCL10-074 your cost is $144.40

If you decide not to repair or overhaul you transfer case let us know we can provide a manufactured unit.  For more information on the parts we can provide for the NP263 see our website.

 

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NP263 Transfer Case Problem 2004 GM 3/4 ton

June 2, 2014 - Author: bartbarton

I have a 3/4 ton GMC 2004 with the 6.0L.

Question:  Back in April I changed theNP263 NP263transmission NP263fluid in the transfer case. I was told at the parts house it took Atf-4 synthetic transmission fluid. I added the transmission fluid. Drove the truck from April to the end of May. Now my transfer case is burned up and has a whole in the transfer case. Would this transmission fluid burn my transfer case up. Being the wrong transmission fluid?

Answer:  The ATF will not case the problem, the problem was caused by the pump wearing a hole in the rear case.

As a minimum you will need the following parts:

  • Bearing Rebuild kit order our part number MWT371 your cost is $150.65
  • Chain 1.50” part number MWTCL-10-074 your cost $144.40
  • Case Half rear NP263 standard part number MWTMG620001 your cost $195.00
  • Case Protector plate Anti Wear (Prevents Pump Lug Wear) part number MW52007 your cost $65.00 plus S&H.NP263

You may want to consider a rebuilt unit from our factory, give Scott a call 888-824-2012 he can help you.

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How much play in planetary assembly ? It is a 263XHD transfer case

April 29, 2014 - Author: bartbarton

I have a 2003 Chevrolet Silverado Duramax 3/4 ton 4WD

Question:  How much play should the gears in the planetary assembly have? It is a 263XHD transfer case. Should the gears in the assembly have shims, spacers in each side of the gears?

Answers:   The planetary pinion gear will usually have .002 play on the shaft.. yes they are to have shims on both sides of the pinion gears and they will have .020 – .030 up and down play. If you need additional help or parts give Scott a call 888-824-2012 he can help you.  You can see the other NP263 Transfer Case parts we offer on our site.

 

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NP263HD Transfer Case Noise

April 3, 2014 - Author: CourtneyN
Question: I have a 2003 GMC Sierra 2500HD with a NP263HD transfer case, at speeds around 55-70 mph it’s making a noise. It did have a pin hole in the case but it was around one of the rubberized bolts I welded that. And now it has a leak out of the rear seal where the drive shaft goes in what do you think is causing the noise? How much for a complete rebuild kit and what all does the rebuild kit come with?

Answer: There are other issues with the rear case that cause problems like this. The snap ring groove in the rear case that retains the output shaft bearing wears causing output shaft end play resulting in bearing failure and noise. Also the transfer case was more then likely ran low on fluid which could have resulted in rear tail bushing wear. It is important to inspect your slip yoke on the drive shaft for wear also. We can help you with all of your parts, a rebuilt or a brand new transfer case.

Here is a list of parts you need.

GM Silverado 32 Spline Input 2001-Up NP263 HD Part Number MWTTCGM038 $1326.67

Case Half (Rear) (NP 263 Standard) Part Number MWTNV30961 $175.00

Chain (1.50″ Wide) 42 Links XHD  Part Number CL10-074 $144.00

Bearing Kit (includes all seals) Part Number BK371 $149.00

Mode Synchro (Middle) Friction (All) Part Number 401701-3 $42.92

Please give our experts a call toll free with any questions at 1-888-824-2012 or visit our website www.midwesttrans.com.

 

 

 

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NP263 Chevy GM Brand New Transfer Case

March 26, 2014 - Author: bartbarton

While they last we now have brand NP263_TCGM037new NP263 Transfer Cases on sale, your cost is $1100.00 plus $500.00 core charge plus freight.  2001-Up 32 Spline input for Chevrolet and GMC.  12 month hassle free warranty.

Call 888-824-2012 to place order, we can also provide repair parts, free technical support take advantage of our expertise and experience.

You can see other NP263 transfer case parts that we can provide.

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