SuperPro SPF2677K Rear Trailing Arm Front Bush Kit for 1992-2002 Mazda RX-7 FD3S

Vehicle Fitment

• 1992-2002 Mazda RX-7 (FD3S chassis, Series 6/7/8)

Fitment Notes

• Front position of the rear trailing arm, mounted to the rear crossmember
• Some regional retailers list this part only through 1998 (Series 6/7) - that reflects which model years were sold in their market (e.g., UK import availability), not a hardware limitation. The FD3S ran through Series 8 to 2002 in Japan, and this bushing is documented as part of SuperPro's full FD3S suspension kit (KIT130K) without a stated series restriction
• This bushing is one component of SuperPro's broader FD3S rear suspension bushing lineup (differential mount, toe arm, upper control arm, shock lower, etc.) - commonly replaced together for a full rear-end refresh

Features

• SuperPro's signature blue polyurethane compound resists wear far better than factory rubber
• Tightens the trailing arm's front mounting point to reduce unwanted rear suspension movement
• Helps maintain more consistent rear toe and alignment under hard cornering and braking
• Improves rear-end feel and predictability for street and track driving
• Engineered to avoid the harshness and added NVH some polyurethane bushings introduce
• Manufactured entirely in Australia under SuperPro's in-house engineering and testing program
• Suitable for street, track day, and motorsport use
• Backed by SuperPro's lifetime warranty

Specifications

• Fitting Position: Rear Trailing Arm, Front (to Crossmember)
• Bushing Material: Polyurethane
• Warranty: Lifetime

Included Components

• 2x Polyurethane Bushings (Rear Trailing Arm, Front Position)

Product Description

The rear trailing arm on the FD3S RX-7 pivots at a front mounting point on the rear crossmember, and that pivot relies on a rubber bushing to control movement while still allowing suspension travel. As this bushing ages, it lets the trailing arm shift more than it should, which shows up as looser rear-end tracking and less predictable behavior when trail-braking or powering out of a corner. The SuperPro SPF2677K replaces this wearable bushing with a polyurethane unit designed to hold its shape and resist that kind of deflection far longer.

This bushing is typically installed as part of a broader rear suspension refresh rather than on its own - SuperPro packages it alongside the differential mount, rear toe control arm (inner and outer), rear upper control arm, and rear shock lower bushings in their full FD3S kit (KIT130K), since these components wear together and all affect rear-end geometry.

This part suits FD3S owners, whether daily-driven, autocross, or track-focused, who are looking to correct the vague, disconnected rear-end feel that comes with aging factory rubber. It's commonly tackled during a full rear subframe bushing overhaul rather than as a standalone repair, given how interconnected the FD's rear suspension bushing points are.