IRS Parts

• Upgrade Halfshaft Assembly
• Rated Up to 2000 Rear Wheel Horsepower
• 108mm CV Joint with Full 300m Billet Chromoly Cage
• Ovaco 300M Alloy Steel Center Bars
• Cold Rolled Splines - Stronger Than Standard Cut Splines
• Left Hand - Driver Side
• Sold Individually
• Fits All 2015-2018 Mustangs with 8.8" IRS Rears

Performance Upgrade. If your S550 Mustang is heavily modified, your stock half shafts might be too weak to take the additional punishment. But after installing Axle Half Shafts from The Driveshaft Shop you will be sure to get all your Pony's power and torque firmly planted to the pavement - where it belongs. The Driveshaft Shop half shafts are designed to handle up to 1400 horsepower at the rear wheels.

Superior Quality. Using their time-tested dependable 108mm CV joints that has a full 300m Billet Chromoly cage, The Driveshaft Shops Axle Half Shafts center bar is constructed from Ovaco 300M alloy steel for superior strength and features cold-formed rolled splines which are much stronger than standard cut splines. All this along with Neo HPCC1 grease and higher durometer Neoprene boots means these axles can handle just about anything you can throw at them.

Application. This Driver Side Axle Half Shaft from The Driveshaft Shop is specifically designed for use on the 2015-2018 S550 Mustangs that are equipped with the stock 8.8" Independent Rear Suspension (IRS), including V6, EcoBoost and GT models. Sold individually.

• BMR Suspension IRS Cradle Bushing Lockout Kit
• Reduces Bushing Deflection, Wheelhop and Cradle Deflection
• Centers Cradle Under the Car
• Little to No Increase in NVH (Noise, Vibration, Harshness)
• 1-5/8" DOM Tubular Steel Construction
• Durable Black Hammertone Powder Coated Finish
• Designed and Manufactured in the USA
• Simple Bolt-On Upgrade
• Fits 2015 to 2018 Fastback Mustangs

Reduce Wheel Hop and Deflection. Do love lighting up the rear wheels of your Mustang at a stop light? Sure we all do. However, S550 owners seem to have to deal with more wheel hop issues than previous generations. This is because the 2015 to 2018 Mustangs feature an Independent Rear Suspension (IRS) that is well known for deflecting under rapid acceleration causing loss of traction and unnecessary wheel hop. By installing a BMR Suspension IRS Cradle Bushing Lockout Kit you will virtually eliminate all troublesome cradle deflection and see an increased improvement in rear wheel traction for more impressive tire smoking burnouts. 

80%-90% Reduction In Deflection. The BMR IRS Cradle Bushing Lockout Kit uses lockout rings and locating washers to hold the IRS cradles inner sleeve bushings securely in place preventing the cradle from moving in any direction. During testing of the Lockout Kit, BMR documented an 80% to 90% decrease in fore/aft IRS cradle bushing deflection. A bone stock Mustang with no suspension modifications and factory tires will see a 90% or higher reduction in cradle deflection. Where a modified, more race oriented Mustang equipped with stickier performance tires will experience slightly less of a reduction. A BMR test vehicle launched at over 7000 rpm, on drag radial tires, saw about an 80% decrease in bushing deflection. Throughout the entire testing process BMR saw a 95% or higher decrease in vertical deflection under all testing conditions.

Centers IRS Cradle. BMR's IRS Cradle Bushing Lockout Kit not only reduces deflection and wheel hop, but it also centers your Mustangs IRS cradle. Replacing the factory sheer plates, the included cradle braces perfectly centers the IRS cradle under the rear of your Pony. The frame side bolts of the brace locks the cradle securely in place, so that it does not move under any form of spirited driving.

Superior Construction. BMR proudly designs and manufactures their IRS Cradle Bushing Lockout Kit right here in the USA. BMR's Lockout Cradle Braces are made from 1-5/8" diameter, heavy-wall DOM steel tubing for superior strength and extra rigidity. These Lockout Braces are then completed in a durable black hammer-tone powder coated finish for aggressive good looks and long lasting corrosion resistance.

No Increase in NVH. BMR's IRS Cradle Bushing Lockout Kit was engineered to drastically reduce bushing and cradle deflection with little, to no change in NVH (Noise, Vibration and Harshness). Seeing that there is no noticeable increase in NVH, this BMR IRS Lockout Kit is perfect for street, auto cross and race applications.

Simple Bolt-On Installation. Installation of the BMR Suspension IRS Cradle Bushing Lockout Kit can be completed in about two hours with just basic hand tools. This BMR IRS Lockout Kit utilizes the existing factory bolt holes, so no cutting, welding or extra modifications are needed. Please note that an alignment, by a qualified shop, is highly recommended after installation.

Application. This Black Hammertone BMR Suspension IRS Cradle Bushing Lockout Kit is designed as a direct bolt-on upgrade for use on 2015 to 2018 Fastback Mustangs equipped with the factory Independent Rear Suspension (IRS), including the V6, EcoBoost, GT and Shelby GT350 models. Not intended for use on Convertible models.