22RPD Subframe Design Features

• Completely redesigned and optimized subframe
• Full 7-gauge laser cut steel construction
• 1000+ TQ launch capacity with 2:1 safety factor
• Retains factory control arms, trailing arms, and sway bars
• Improved suspension geometry, including 8.4mm of roll center correction for lowered cars
• Input shaft lowered 3/8" to easily fit a 3.5"+ diameter driveshaft
• Fully powder-coated finish
• Weighs 11.3kg (24.9lb) compared to the OEM subframe at 9.8kg (21.6lb)

What does all of that mean?

More reliability, more track time, faster corner exit, higher grip threshold, faster launches, and improved overall performance.

Benefits of the Ford 8.8 “Supercase” Differential

• Used differentials can be found for as little as $250
• Wide range of gear ratios available: Aftermarket ratios begin at 3.08 and go to 5.10 in ~0.2:1 increments
• Comparable weight to the 188 diff (The aluminum case option is ~75 lbs)
• Affordable replacement carriers (New LSD carriers start at $177+)
• Brand new Supercase LSDs can be found for around $800

Common Factory Supercase Differentials Include

• 3.73:1 Torsen Type
• 3.15:1 Standard Clutch Type
• 3.55:1 Standard Clutch Type

Installation Notes

• Aftermarket adjustable camber arms are required for this install (We recommend SPC). The factory arms with sheet metal construction are too large at the inner mount.
• Adjustable sway bar end-links are recommended and may be required depending on the ride height and sway bar selection.
• It is strongly recommended to have rear subframe/chassis reinforcement plates installed (OEM or equivalent). This kit uses solid mounting for the subframe and differential, which will transfer more NVH to the chassis.
• Clearance may need to be added to the lower spring bucket depending on the axle selected. All bolt-together axles require added clearance here.
• The differential kit was designed around factory Ford driveshaft components. We recommend checking your driveline angle and suggest using a CV-based driveshaft joint in the rear.

Package Contents:

• Complete installation manual
• Installation hardware package
• Driveshaft specification sheet
• Your choice of subframe bushings

Looking to Complete Your Kit?

We offer two axle solutions to complete your Ford 8.8 swap:

• 22RPD Axles – A robust and cost-effective solution designed to handle 1000hp. These CNC-machined billet 4340 chromoly axles combine precision engineering with premium German CV joints and a modular, rebuildable design. Learn more about our 22RPD Axles here.

• G-Force Axles – For those seeking premium performance and maximum durability, we offer G-Force’s Renegade and Outlaw axle options. These axles feature CNC-machined stubs, billet-machined CV joints, and upgraded components designed for extreme power applications. Learn more about our G-Force Axles here.