JXB Performance SUB03A0 Propshaft/Driveshaft Centre/Center Support Carrier Bearing Mount Upgrade for Subaru Impreza WRX/STI GC8 GD GG 1993-2007, Legacy BC/BF 1989-1994, Saab 9-2X – Hanger Bracket, Street/Track Bushings

Propshaft Centre Bearing Mount Upgrade for Subaru and Saab - JXB Performance SUB03A0

Stop shudder, wobble and driveline play with the JXB Performance SUB03A0 prop shaft hanger bearing mount. This heavy duty propeller shaft support locks the shaft in the correct position under load while smart isolator bushings keep noise and harshness in check. Perfect for spirited road use and track builds alike on classic Impreza platforms and the Saab 9-2X.

Why upgrade your factory centre bearing mount

• OE rubber sags, cracks and goes brittle over time which knocks the shaft off-centre, leading to vibration, clunking and poor driveline alignment.
• Soft stock support allows the prop shaft to move during throttle changes and shifts which adds slop and driveline lash.
• The OEM holder is bonded to the bearing which makes replacement a pain without specialist tools.

SUB03A0 solves these issues with a robust two-piece carrier that clamps around the original bearing, holds the prop centred and maintains correct alignment. Our team has installed this part on customer cars and our own builds with excellent results. Feedback has been consistently positive for improved stability and a tighter, more direct feel from the drivetrain.

Key features

• Thick isolator bushings minimise NVH while keeping the propeller shaft precisely located.
• Two interchangeable bushing options to suit your use case:
  • Street: absorbs most drivetrain noise, ideal for daily drivers.
  • Track: maximum control for motorsport and hard-driven cars, expect more cabin sound.
• Solid construction designed for long service life.
• Clamp-on, two-part design means the propshaft does not need to be removed.

Fitment and chassis codes

• Impreza 1st gen GM, GC, GF (1993-1999) including Impreza Outback
• Impreza 2nd gen GD, GG (2000-2007) including WRX, WRX STi and Outback Sport
• Legacy 1st gen BC, BF, BJ (1989-1994)
• Saab 9-2X including Aero

Common searches this part answers: Subaru propshaft centre bearing, prop shaft hanger bracket, propeller shaft support, WRX prop shaft mount, STi centre bearing replacement, GC8 GD GG driveline mount, Legacy centre bearing, Saab 9-2X prop shaft support, Impreza Outback propshaft carrier, driveline vibration fix, shudder and clunk cure, NVH isolator bushing kit.

Part numbers

• SUB03A0-S Street
• SUB03A0-T Track
• SUB03A0-B Both bushing sets

Spare isolator packs: Street BSH09A0, Track BSH09A1

Installation overview

No need to drop the prop shaft. The two-piece carrier clamps around the existing bearing once the bonded factory rubber is removed.

• Remove any underbody braces or splash shields that block access.
• Lower or remove the exhaust section near the centre bearing if required.
• Remove the heat shield covering the centre bearing area.
• Cut off the OEM carrier and carefully trim away the rubber support material, leaving the base layer on the bearing.
• Clamp the new carrier around the OEM bearing and torque to spec.

Professional fitting

Want it installed by pros who know these cars inside out? Book fitting with MJ Modifications in Warwickshire. Email info@mjmodifications.co.uk for a quote and availability.

Compatibility check

We verify fitment before dispatch. UK customers can provide their registration number. International customers can supply the last 7 characters of the VIN during checkout.

What you will notice

• Reduced vibration and judder across the rev range.
• Sharper response on and off throttle with less drivetrain shunt.
• Consistent alignment for smoother cruising and improved longevity of driveline components.