FREE 1 to 3-Day Delivery on Orders $119+ Details

Talk to a Wrangler Sales Tech
1-877-870-8556
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Logo Image
Black Friday is Here! Shop Early Deals >
Get $80 Off Redeem Now >

Find Transfer Cases for your Wrangler

NP231 Transfer Case Mode Shift Synchro Spring (87-95 Jeep Wrangler YJ w/ Disconnect)Find parts that fit my vehicle

Item J136961
NP231 Transfer Case Mode Shift Synchro Spring (87-95 Jeep Wrangler YJ w/ Disconnect)
Verify parts fit and get product recommendations.
Wrangler Sales Techs: Connect Now M-F 8:30A-11P, Sat-Sun 8:30A-9P
Call now 1-877-870-8556 Chat Now
$4.74
25 Reviews
On Sale

-53% $4.74 each Was $9.99

to: 43215
Please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
Add to Cart
Save for later
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

    Loading Indicator

    Frequently Bought Together

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features

      • Transfer Case Synchronizer Spring
      • For the NP231 Transfer Case
      • Sold Individually
      • Optimizes Gear Alignment
      • Eliminates Odd Noises
      • Prevents Random Shifting or Stuck Gears
      • Quality Construction
      • Direct-Fit Replacement Part
      • Professional Installation Needed
      • Limited 12-Month or 12,000-Mile Warranty
      • Fits 1987-1995 Jeep Wrangler YJ Models

      Description

      Perfect Gear Alignment. Odd sounds, constant grinding noises, and randomly shifting into neutral are the biggest signs of a faulty manual transmission. More often than not, gear alignment issues can result from a bad synchronizer. If that’s the case, you could use the NP231 Transfer Case Mode Shift Synchro Spring. It will readjust the shaft speed and improve gear alignment, contributing to faster shifting and eliminating the noise.

      Quality Design. The Crown Automotive NP231 Synchro Spring is built from the best materials to meet OEM specifications and performance standards. This is in line with the manufacturer’s tradition of delivering industry-leading performance upgrades.

      Advanced Installation. Note that the NP231 Transfer Case Mode Shift Synchro Spring is sold individually, and you’ll probably need 2 to restore your transfer case to optimum performance levels. Additionally, this is a job best handled by an experienced, certified mechanic to ensure proper functionality and avoid voiding the warranty.

      Limited 12-Month Warranty. Speaking of warranty, the NP231 Transfer Case Mode Shift Synchro Spring has 12 months of coverage starting on the purchase date. Depending on the usage rate, it can also be covered for 12,000 Miles.

      Application. The NP231 Mode Shift Synchro Spring is a synchronizer spring designed for all 1987-1995 Jeep Wrangler YJ Models with manual transmission.

      Fitment:

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Synchronizer Spring
      4.5

      Customer Reviews (25)

      Questions & Answers

      No questions about this product yet. Ask the First Question

          Community Support

          Word On The Trail

          New Wrangler owner, and first time buyer from Extreme Terrain. Well designed site; very easy to find what I'm interested in by using the filters provided.

          droid41
          Previous Slide Next Slide