Evolution Driveline Reman NP231 Transfer Case - UMT207-2FY



High mileage Wranglers can be had for cheap these days, although extensive repair work often needs performed. When it comes to the transfer case don't even bother opening it up! We have remanufactured New Process 231 transfer cases ready to bolt right into your Jeep. Remanufactured in the USA using original Jeep and after-market parts, these transfer cases look and operate like new and come with a 12 month/12,000 mile warranty. Original transfer cases should be returned for a $350 core rebate. The manufacturer core charge will be refunded when they receive your old transfer case (Returning transfer cases other than 231, or holes/cracks in cases, missing yokes or tail-housings, etc., will result in less than $350 being refunded. Please follow core instructions). Note: The $350 core charge will be charged in addition to the retail price at the time the order is received. Return freight to be paid for by the customer.

Customer Reviews

2.0 2.0
2 Customer ratings
1.0 No Speedo gear

Came with no speedo gear. No response since the auto-reply. Stuck with non-working T-case minus $1,800. If you read their policy carefully. No core charge will be refunded unless you send back the undamaged perfect T-case. Why they think people buy new T-case when you have perfectly undamaged one? I hope they will either refund me or replace with another for their mistake. It has been 3 weeks since the purchase.

from NY |
3.0 Where is my core credit?

The transfer case went in fine and works great. However 4WP has yet to give me my core credit! I have called and emailed with no help and they seem lost on what to do!!

from Kalama, WA |


Question & Answers

6 Answered questions

Q: Does this come with a speed sensor installed? Answer this question

A: PN: UMT207-2FY - Speedometer Type: w/ 1.75" Speedometer Hole | 2001-1997 | 4.0L L6 | Transfer Case Assembly w/SYE, | Without Motor | 4WD, | AW4 Trans Code, | Different drive shaft and other components are needed with these units (Not Supplied), | Housing Color: Natural Media Blasted, | Front Output Type: Fixed Yoke, | Rear Output Type: Fixed Yoke w/ Slip Yoke Eliminator (SYE) & w/ 1 pc tail hsg., | Input Shaft Splines: 23 w/ 0.840" Exposed Shaft Length, | Shift Operation: Manual | New Process NP231J

Answered by Dave from 4WP HQ on 03/30/2022

Q: Do you offer this transfer case for an automatic transmission? Answer this question

A: Transfer Case Shift Operation: Manual | AW4 Trans (Automatic)

Answered by Dave from 4WP HQ on 03/30/2022

Q: will this unit work with the stock rear drive shaft Answer this question

A: No - it will be too short with the SYE 

Answered by Rider716 from Washington on 12/14/2021

Q: Will this work with an 06 Wrangler X with the 6 speed manual transmission? Answer this question

A: Yes it will.

Answered by Kelly from 4WP Corporate Headquarters on 07/01/2021

Q: Which rear drive shaft should I purchase for use with this t-case? Answer this question

A: Any driveshaft will work as long as it is the proper length. Once the t-case is installed, measure the distance from yoke to yoke and that is the length driveshaft you need.

Answered by Christian from 4WP HQ on 01/14/2021

This Product Fits the Following:

  • 2006 Jeep Wrangler (TJ) Rubicon  
  • 2006 Jeep Wrangler (TJ) SE  
  • 2006 Jeep Wrangler (TJ) Sport  
  • 2006 Jeep Wrangler (LJ) Unlimited  
  • 2006 Jeep Wrangler (LJ) Unlimited Rubicon  
  • 2006 Jeep Wrangler (TJ) X  
  • 2006 Jeep Wrangler (TJ) 65th Anniversary Edition  
  • 2005 Jeep Wrangler (TJ) Rubicon  
  • 2005 Jeep Wrangler (TJ) SE  
  • 2005 Jeep Wrangler (TJ) Sport  
  • 2005 Jeep Wrangler (TJ) X  
  • 2005 Jeep Wrangler (LJ) Unlimited  
  • 2005 Jeep Wrangler (LJ) Unlimited Rubicon  
  • 2004 Jeep Wrangler (TJ) Rubicon  
  • 2004 Jeep Wrangler (TJ) Sahara  
  • 2004 Jeep Wrangler (TJ) SE  
  • 2004 Jeep Wrangler (TJ) Sport  
  • 2004 Jeep Wrangler (TJ) X  
  • 2004 Jeep Wrangler (LJ) Unlimited  
  • 2003 Jeep Wrangler (TJ) Rubicon  
  • 2003 Jeep Wrangler (TJ) SE  
  • 2003 Jeep Wrangler (TJ) Sahara  
  • 2003 Jeep Wrangler (TJ) Sport  
  • 2003 Jeep Wrangler (TJ) X  
  • 2002 Jeep Wrangler (TJ) SE  
  • 2002 Jeep Wrangler (TJ) Sahara  
  • 2002 Jeep Wrangler (TJ) Sport  
  • 2002 Jeep Wrangler (TJ) X  
  • 2001 Jeep Cherokee (XJ) Classic  
  • 2001 Jeep Cherokee (XJ) Limited  
  • 2001 Jeep Cherokee (XJ) SE  
  • 2001 Jeep Cherokee (XJ) Sport  
  • 2001 Jeep Wrangler (TJ) SE  
  • 2001 Jeep Wrangler (TJ) Sahara  
  • 2001 Jeep Wrangler (TJ) Sport  
  • 2000 Jeep Cherokee (XJ) Classic  
  • 2000 Jeep Cherokee (XJ) Limited  
  • 2000 Jeep Cherokee (XJ) SE  
  • 2000 Jeep Cherokee (XJ) Sport  
  • 2000 Jeep Wrangler (TJ) SE  
  • 2000 Jeep Wrangler (TJ) Sahara  
  • 2000 Jeep Wrangler (TJ) Sport  
  • 1999 Jeep Cherokee (XJ) Classic  
  • 1999 Jeep Cherokee (XJ) Limited  
  • 1999 Jeep Cherokee (XJ) SE  
  • 1999 Jeep Cherokee (XJ) Sport  
  • 1999 Jeep Wrangler (TJ) SE  
  • 1999 Jeep Wrangler (TJ) Sahara  
  • 1999 Jeep Wrangler (TJ) Sport  
  • 1998 Jeep Cherokee (XJ) Classic  
  • 1998 Jeep Cherokee (XJ) Limited  
  • 1998 Jeep Cherokee (XJ) SE  
  • 1998 Jeep Cherokee (XJ) Sport  
  • 1998 Jeep Wrangler (TJ) SE  
  • 1998 Jeep Wrangler (TJ) Sahara  
  • 1998 Jeep Wrangler (TJ) Sport  
  • 1997 Jeep Cherokee (XJ) Country  
  • 1997 Jeep Cherokee (XJ) SE  
  • 1997 Jeep Cherokee (XJ) Sport  
  • 1997 Jeep Wrangler (TJ) SE  
  • 1997 Jeep Wrangler (TJ) Sahara  
  • 1997 Jeep Wrangler (TJ) Sport