---
product_id: 75992830
title: "PowerTrax No-Slip Ford 9\" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance"
brand: "powertrax"
price: "VT250037"
currency: VUV
in_stock: true
reviews_count: 1
url: https://www.desertcart.vu/products/75992830-powertrax-no-slip-ford-9-differential-locker-31-spline-fits
store_origin: VU
region: Vanuatu
---

# PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance

**Brand:** powertrax
**Price:** VT250037
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance by powertrax
- **How much does it cost?** VT250037 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/75992830-powertrax-no-slip-ford-9-differential-locker-31-spline-fits)

## Best For

- powertrax enthusiasts

## Why This Product

- Trusted powertrax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance

## Features

- Combines the smooth operation of a limited-slip differential, with the traction performance of a locking differential     A precise synchronization mechanism eliminates the ratcheting sounds typical of other locking differentials     Special gear and spring design reduce the backlash and therefore driveline windup     Only ultra strength material is used which is 67% stronger than titanium     Simple installation because no ring and pinion set-up, no special tools or oils, are required; step by step model specific instructions are provided with every kit    ›See more product details

## Images

![PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance - Image 1](https://m.media-amazon.com/images/I/61ZrZaKaArL.jpg)
![PowerTrax No-Slip Ford 9" Differential Locker 31 Spline -Fits Open Differential | Compatible for Ford, Lincoln, Mercury | Replaces Eaton 187SL17B, Auburn Gear 542036 | Heavy-Duty Performance - Image 2](https://m.media-amazon.com/images/I/71m1UH0Q1bL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Works well in E350 van
  

*by K***1 on Reviewed in the United States on April 22, 2021*

I installed this in a Dana 60 in a E350 van almost a year. It has worked very well for me.I don’t really notice it there.  When shifting between forward and reverse, you can feel a bit of looseness in the drive train, as it unlocks and then locks up in the other direction.  I noticed a very slight pull towards straight in curves when it was first installed, but only because I was looking for it. I don’t notice it at all now.  I installed a locker because the van got stuck a couple times on muddy dirt roads.  The alternate was to buy a 4x4 truck, so this saved $60k.  I’ll get a  4x4 when this 1995 van dies, but the 7.3 diesel is still going strong so it may be awhile .

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**Shop now:** [https://www.desertcart.vu/products/75992830-powertrax-no-slip-ford-9-differential-locker-31-spline-fits](https://www.desertcart.vu/products/75992830-powertrax-no-slip-ford-9-differential-locker-31-spline-fits)

---

*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-18*