This KellTrac S550 Mustang IRS Subframe "Posi-Loc" System for the S550 / S650 Mustang positively locates the rear IRS Subframe within the chassis. By filling the voids within the factory bushings and putting positive pressure on the factory bushing stops, this kit eliminates the deflection found within the stock assembly that leads to poor performance in all scenarios. Whether you are a spiritedly street cruising, drag racing, road racing or auto-crossing this KellTrac Posi-Loc system will significantly improve the performance and feel of your S550 Mustang.
FEATURES:
-CNC Machined Lightweight Design
-6061-T6 Billet Aluminum, Anodized Black
-Precision fitment for maximized performance
-Zero NoiseVibrationHarshness Increase
-Industry First Unique rear lower design, replaces factory bushing stop plate
BENEFITS:
-Reduces Wheel-Hop
-Centers Subframe to Chassis
-No centering sleeves needed!
-Improves Handling, Traction and Feel
-Helps prevent bushing and driveline part damage
-Can assist in reducing driveline vibrations
-Reduces pinion angle change under heavy WOT loads
Avoid headaches and replace those pesky OE subframe mounting bolts with this kelltrac IRS stud kit. This kit includes everything you need to stud your S550's rear IRS subframe to the chassis.
-Zinc Coated Grade 10.9 studs, class 10 nuts and washers
-Comes with M14x2.0 Hand Tap and Anti-Seize for proper installation
-Allows adjusting of subframe heights and angles without compromising thread engagement
-Prevents cross threading which is VERY common. Also prevents damaging threads which is common on the front driver side mount
-Allows the ability to drop the subframe VERY low and still support from the studs. This is convenient for those who need to work on the IRS frequently (racers)
-
| MODEL |
YEAR(S) |
| Mustang GT S550 5.0L |
2015 2016 2017 2018 2019 2020 2021 2022 2023 |
| Mustang S550 2.3L Ecoboost |
2015 2016 2017 2018 2019 2020 2021 2022 2023 |
| Mustang S550 V6(3.7l) |
2015 2016 2017 |
| Mustang S650 GT 5.0L |
2024 |
