Details
All billet IRS Knuckle allows up to a 15x12 wheel on stock rear suspension. Standard OEM knuckle only allows up to a 15x9 and requires a custom offset. Fitment for all 2015-2022 Mustang GT, V6 and Ecoboost.
Features & Benefits
• Can be used with Baer Deep Stage Rear Brake Kit Drag Race 15" Wheel (15-23 Mustang w/AED Knuckle Conversion) 4262732
• Anodized Black T6061 Billet
• Made in USA
• Premium Installation Hardware
• ARP Nuts and Washers
• Fits Stock S550 Wheels or up to 15x12.5 Non Beadlock or 15x11.5 Beadlock
• Use Stock S550 Hub and S550 Brake Caliper
• Re-Use Stock Spindle and ABS Mount
• No Change in Rear Geometry
• No Bleeding of Rear Brakes Required
• Fits Aftermarket 5-1/4" / 5.25" Brakes (See Specs Below)
• Use Stock S197 Mustang Rotor
• Stock to 1000+HP Capability
• Sold as a Pair
The AED rear IRS Knuckle is a replacement knuckle to allow a wider wheel and still maintain the factory suspension geometry. Re-Uses mainly stock components including factory wheel, hub, brake caliper, brake line, sway bar, toe link, lower control arm etc...
To build such an integral suspension piece, we start from an 82lb chunk of billet aluminum and machine it down to about 6lbs. This weight to strength ratio will support anything from stock horsepower to 1000+ with the security of knowing you have a premium component that will not fail at the track. Aurora Race Series 12T and 10T bearings are used for exceptional load capacity for the toe and main unit. Machined helicals for the caliper mounts while Timken steel spacers allow use of the stock caliper.
Brake Mounting Info
- Fits Stock S550 Caliper but must use a S197 Brake Rotor (purchased separately)
- Machining is required to fit the Rotor to the Hub, easy with die grinder.
- Dual Mounting location fits stock S550 Caliper or aftermarket calipers with 5-1/4" spacing like Baer, Lamb, Aerospace, Wilwood etc..
- Center of Spindle to Top Caliper Bolt Hole is 4.552" or 115.5mm
- Hat Depth Hub to Caliper is 2-13/16" or 71.5mm
Installation Notes
- Modifications to sway bar end link bolts, factory toe link and lower control arms are required for proper wheel clearance
- We suggest an alignment when complete to make sure everything is lined up correctly
Confirmed Wheel Fitments
- To get full use of the backspace and width, we recommend a Bogart wheel, we have custom spec'd fitments up to a 15x11.5" beadlock which measures 15x12.5 overall. They have 2 fitments available, one for oem brakes with s197 rotor and 1 with a deeper dish for the Baer Kit.
- If you opt for a 15x11 Weld low pad with 7.5" backspace, it will require a 3/4"-1" spacer to fit properly, but will push the wheel out an extra .75" which takes away from the desired look and fit.
- We will be testing Billet Specialties wheels in the next few weeks and will update the listing at that time.
