Differential Booster "DIRS" for Jeep Grand Cherokee SRT & Trackhawk, Dodge Durango SRT & Hellcat
Per4mance Development Differential Integration and Reinforcement System (DIRS) - reinforce your differential housing and improve both independent rear suspension function and traction on your Jeep Grand Cherokee SRT or Trackhawk and Dodge Durango SRT and Hellcat with the DIRS-J.
Part 1 fastens the differential with the lower two main housing bolts and the two lower housing bolts to reinforce the differential.
Part 2 attaches to the rear crossmember and carries an OEM differential bushing (just like the two in the rear crossmember) to add a third integration point for attachment to the reinforced differential.
Features:
- USA made and CNC machined T-6061 billet aluminium.
- OEM differential bushing
- ARP (or equivalent) fastening material grade 10.9
- 304 stainless steel threaded cross member inserts
- Complete kit with everything needed for installation, including Loctite
- Hard anodised coating in black
- Access to filling and drain plugs
- Suitable for up to 1000 hp wheel power
- No additional noise or vibrations
Note:
To install the DIRS-J differential reinforcement, two holes must be drilled in the rear cross member.
Fits:
| Make | Model | Engine | Year |
| Dodge | Durango | 6.2 Hellcat | 2021 – 2023 |
| Dodge | Durango | 6.4 SRT | 2018 – 2023 |
| Jeep | Grand Cherokee | 6.2 Trackhawk | 2018 – 2021 |
| Jeep | Grand Cherokee | 6.4 SRT | 2015 – 2021 |
Manfred -
I can highly recommend Kraftwerk. I did an all-round job and replaced all the wear parts for my Trackhawk + a small performance upgrade. The advice was excellent, delivery time as stated. I'm looking forward to the next upgrade.
Verified purchase. More information
Marco -
Highly recommended, and any queries were answered directly. You never had the feeling of being on your own. Super customer service.
Verified purchase. More information
patricgrunewald -
Very good quality fits perfectly
Verified purchase. More information