GPM Racing Stainless Steel+ Aluminium Supporting Mount with Front and Rear Upper Arms for Traxxas 1/10 MAXX W/Widemaxx 2.0 Monster Truck-89086-4 (TXMW054FRS)

Technical upper support and adjustable arms for X-MAXX

This precision-engineered supporting mount set is an aftermarket replacement for front and rear upper arm assemblies on TRAXXAS X-MAXX models and is intended for hobbyist upgrade use. The configuration pairs corrosion-resistant stainless steel pins with machined aluminium mounting components to improve structural stiffness while minimising added mass, allowing measured suspension tuning for varied off-road conditions.

Adjustment procedure: loosen the mounting screws, engage a pin or hex key in the adjuster, and rotate to increase or decrease link length. Incremental changes affect toe and camber behaviour and permit controlled setup changes without swapping multiple fixed-length links. The components are designated for upper arm positions as indicated in the compatibility details.

Assembly notes: the set is compatible with the MAXX entries listed in the compatibility box, uses the supplied stainless pins and flat head screws for robust mounting, and installs with standard RC tools. Confirm part alignment on your chassis prior to final torqueing and apply appropriate torque values to stainless fasteners to avoid thread damage in aluminium bosses.

Packing includes

• Upper Arms – 4pcs
• Stainless Steel Pin 4×33 – 4pcs
• Stainless Steel Pin 4×43 – 4pcs
• Stainless Steel Flat Head Screw 3×8 – 8pcs
• Stainless Steel washer 3m – 8pcs

Original Name / Part No:

TXMW054FRS

Compatible Models

• TRAXXAS -1/10 4WD MAXX W/WIDE MAXX MONSTER TRUCK-89086-4

Engineered as a practical upgrade for TRAXXAS X-MAXX, this stainless steel and aluminium adjustable upper arm assembly offers improved stiffness and adjustability for precise suspension tuning in hobby and club-level competition contexts.

What tolerances are critical during installation?

Ensure correct pin seating and full thread engagement in the aluminium mounts, and verify adjuster runout is minimal to maintain predictable geometry changes.

Can I use this with reinforced or upgraded hubs?

Yes. The kit is compatible with common hub upgrades, but check for clearance and match fastener lengths when mixing aftermarket components.

Are the aluminium mounts CNC machined?

The mounts are precision formed to control fit and alignment; inspect mating surfaces during test fit and deburr if required for optimal seating.

Recommended maintenance schedule?

Periodically check fastener torque, inspect pins for wear, and confirm adjuster integrity after heavy runs to preserve consistent suspension geometry. Write Product Review Please sign in your account before you can write any review. Sign In Close

Made to order: GPM Racing parts are shipped to us from GPM’s factory, so please allow around 14 days for dispatch.