Performance Built NP231 Transfer Case Sale

The NP231 transfer case was introduced in 1988 by New Process Gear for use in Chevy, Dodge, GMC and Jeep vehicles. The New Process 231 is the most popular chain driven transfer case to date.

The NP231 transfer case features a front driver's side output as well as a center line rear output. The NP231 transfer case comes with two ranges; a 2.72 low and a high range in direct drive. New Process used a mechanical speedometer gear from 1988 to 1991. In 1992 the speedometer was switched to a three wire vehicle speed sensor also known as VSS. Not only is the NP231 transfer case a great direct replacement, it is also used in many conversions.

Here at Smart Parts we specialize in taking a good transfer case and making it even better. Our state of the art upgrades and our cutting edge build process allow us to build a NP231 that exceeds the standards set forth by manufacturers.

Common Transfer Case Names

NP231
NV231
New process 231
New Venture 231
NP231J
NP231D
NP231C

Chevy/GMC Vehicle Compatibility

S10 Blazer
S10 Pickup
Jimmy
Sonoma

Dodge Vehicle Compatibility

Dakota
Durango
Ram 1500

Jeep Vehicle Compatibility

Cherokee
Grand Cherokee
Liberty
Wrangler

Years Covered

1989
1999
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2012
2013

NP231 Build Type

Performance Grade remanufactured QS9000 Certified

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Details
Q&A
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Warranty Info

NP231D Sale Price:	$695.00 Dodge
NP231J Sale Price:	$795.00 Jeep
NP231C Sale Price:	$650.00 Chevy/GMC
List Price:	$725.00 $850.00
Core Deposit:	$250.00 ?
Delivery and Core Shipping:	Call for a Freight Quote
5 Star product Rating:	★★★★★
Sales Tax Applied:	0.00%
Phone Order: 1-888-995-7278	Mon-Sun 8-9 CST

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NP231 Vehicle Applications

Manufacturer	Model	Years	Input Spline	Output Spline
Chevy / GMC	S10 Blazer	1992-1997	27	32
	S10 Pickup
	Jimmy
	Sonoma

Manufacturer	Model	Years	Input Spline	Output Spline
Dodge	Dakota	2000-2001	23	32
	Dakota	1994-1999		27
	Dakota	1988-1996		26
	Durango	2000		32
	Durango	1998-1999		27
	Durango DHD	1998-1999		32
	Ram 1500	1994-2000		32

Manufacturer	Model	Years	Input Spline	Output Spline
Jeep	Cherokee	1989-2001	23	27
	Cherokee	1989-1990	21	Fixed Yoke
	Comache	1989-1992	23	27
	Grand Cherokee	1993-1995	23	27
	Liberty	2002-2013	23	32
	Wrangler	1991-2006	23	27
	Wrangler	1993-2003	23	Fixed Yoke

NP231 specs and current transfer case Data
Original Manufacturer:	New Process Gear
Gears:	Chain Driven
Drive:	2WD and 4WD, 2H, 4H, N and 4L
Recommended NP231 Oil / Fluid:	ATF+3 (Or ATF+4) (Any Name Brand)
Torque Rating:	Manufacturer: 1600 lb ft Ours: 1600 + lb ft
NP231 Transfer Case Oil capacity:	2 Quarts
Weight:	70 lb Dry
NP231 Build:	Performance Built
Performance Inspected For:	Leaks Shifting Difficulties Vibrations Excessive Noise Temperature and Performance

NP231 Tag Numbers
NP231 Transfer Case Gear Ratios:	2.72:1
Hollander Interchange Numbers:	400-02662 400-02660 400-02663 400-02661 400-03250 400-03248 400-03249 400-03251 400-04152 400-04153 400-04154 400-04155

Questions Answered About The 6L80E Transfer Case

July 11th, 2013

Question
I have a 94 Grand Cherokee. Can you tell me the spline count so I can make sure this matches up.

Answer
The input is 23 and 27 for the output. To ensure a direct fit it may be easier to just grab us the tag if its available. Usually all we need is a tag to match you up with the correct TC.

Reply: Question
The splines match, Ill call you with the tag.

Brett R*****
Apple Valley, MN

If you have a question you would like to submit, please e-mail it to: info@smartpartsauto.com

Customer feedback and reviews

September 5th, 2013

★★★★★ 5/5

I was impressed by the price.
"I was skeptical by the cheap price, my shop wanted to charge close to twice as much. I have had the 231 in my Dakota for over a month now and it runs as good if not better as the original. "

KC McGovern
Cold Water, MI

If you have purchased a this part and wish to submit a review, please e-mail it to: info@smartpartsauto.com