Complete Rear Assembled AR44 Portal PHAT™ Axle

Looking for the ultimate scale performance axles? Check out Boom Racing's AR44 PHAT portal axles, factory-installed by Boom Racing.

PHAT axles are heavier than most axles, a desirable feature for crawlers to maintain a low center of gravity.

In addition to its weight, the AR44 PHAT portal axles are smooth and durable. The gears are made of heavy-duty hardened steel for added durability and strength. The BADASS driveshafts are constructed from high-strength alloy steel for maximum durability.

Specifications:

Hole to Hole: 193mm (7.6")

Weight: 270grams / 9.5oz (fully assembled)

Input pinion shaft: 5mm

Features:

Additional 15mm / 0.59" ground clearance at the pumpkin over AR44 straight axle

Heavy and low CG AR44 PHAT axle housing

Heavy and low CG AR44 PHAT diff cover

CNC anodized aluminum lockouts and portal covers

BADASS™ heavy-duty steel rear driveshafts and portal driveshafts for ultimate durability, performance, and strength for the axle drivetrain

Four heavy-duty hardened steel metal gears in each portal gearbox for ultimate durability; easy to set up as standard rotational drivetrain

Steel brackets included for added axle strength

Triangular keyed AR44 (30/8T) high pinion gear, input shaft, and triangulated spool (optional underdrive gear available)

High pinion axle setup for improved clearance

Reversible ring gear position in the housing and optional reversed AR44 gear for counter-rotating center drivetrain setup

Compatible with PHAT™ axle brake disc and caliper (requires optional adapter #BRPT005)

Anodized aluminum lower link mounts

Aluminum 12mm wheel hex

Full rubber shielded ball bearings

Full 12.9-grade hardware

Shims for fine tuning