DIRS-J rear differential brace installed Jeep Trackhawk Durango Hellcat
DIRS-J differential brace kit with hardware
Proudly Made in USA DIRS-J rear diff brace
 DIRS-J rear diff brace on Dodge Durango Hellcat
Differential movement eliminated with DIRS-J
 Side profile DIRS-J installed Trackhawk
DIRS-J
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Dodge Durango/Jeep WK2 Grand Cherokee Rear Differential Per4mance Development (DIRS-J) for SRT/Hellcat/Trackhawk

$ 469.00
$ 469.00

SKU: DIRS-J 

2015-2021 Jeep Grand Cherokee SRT / Trackhawk & 2018-2024 Dodge Durango SRT / Hellcat

The DIRS-J Rear Differential Brace is the ultimate upgrade for high-horsepower WK2 Jeep Grand Cherokee SRT/Trackhawk and Dodge Durango SRT/Hellcat owners. CNC-machined from billet 6061-T6 aluminum and hard-anodized black, this brace eliminates rear differential movement under hard launches, prevents axle hop, and dramatically reduces the chance of cracking or destroying the factory differential housing a common failure on 700+ HP builds.

100% bolt-on design reuses factory hardware and installs in under 30 minutes with basic hand tools. Proven on 1000+ HP Trackhawks and Hellcat Durangos worldwide.

Key Features

  • CNC-machined 6061-T6 billet aluminum construction
  • Hard black anodized finish for durability
  • Eliminates differential movement & axle hop
  • Prevents cracked differential housings on high-HP builds
  • Direct bolt-on no drilling or welding
  • Installs in under 30 minutes
  • Made in the USA
  • Limited lifetime warranty

Product Notes

  • Fits 2015–2021 Jeep Grand Cherokee SRT & Trackhawk
  • Fits 2018–2025 Dodge Durango SRT 6.4L & Hellcat 6.2L
  • Compatible with factory & most aftermarket axles

California Proposition 65 Warning: This product can expose you to chemicals known to the State of California to cause cancer or reproductive harm. For more information go to www.P65Warnings.ca.gov

Warranty: Limited lifetime to original purchaser

Installation

  • Professional installation recommended but not required
  • Bolt-on using factory hardware
  • Estimated install time: 20–30 minutes

This Part Fits

Year Make Model Engine
2015-2021 Jeep Grand Cherokee SRT / Trackhawk V8-6.4L / 6.2L (sc)
2018-2025 Dodge Durango SRT / Hellcat V8-6.4L / 6.2L (sc)

What’s Included

  • (1) Billet 6061-T6 Rear Differential Brace – Black Anodized
  • All necessary spacers & hardware
  • Detailed Installation Instructions

Frequently Asked Questions

  • Q: Do I need this on a stock vehicle?
    A: Not required, but highly recommended on any SRT/Trackhawk/Hellcat
  • Q: Will it fit with aftermarket axles?
    A: Yes, clears DSS, GForce, and most upgraded axles
  • Q: Does it change ground clearance?
    A: No, sits above factory location

Shipping & Handling

  • Method: UPS or FedEx Ground
  • Availability: Typically ships same day or next business day when in stock
  • Packaging: Heavy-duty box with custom foam protection
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