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Boom Racing Portal Axle Conversion Kit for BRX70 & BRX90 PHAT Axle


Our all-new portal axle gearbox for the BRX70 and BRX90 PHAT Axles. Full aluminum construction, HD steel gears, and BADASS driveshafts for ultimate strength and durability. The portal gearboxes come pre-assembled, greased up, and ready to go for you!

We are excited to announce our latest release of these portal axle conversion kits for BRX70 and BRX90 PHAT axles. These new portal gearboxes use four HD steel gears for strength and durability and have a 1:1 gearbox output ratio.
+ Additional 15mm / 0.59" ground clearance at the pumpkin
+ CNC aluminum portal knuckle & cover
+ BADASS heavy-duty steel front universal/rear driveshafts
+ BADASS heavy-duty steel portal driveshafts
+ Four heavy-duty hardened steel metal gears in each portal gearbox
+ Anti-twist steel brackets to prevent axle twist
+ Full rubber sealed bearings
+ Full 12.9-grade hardware
+ Compatible with PHAT Axle brake disc and caliper (requires optional adapter)
+ Width: BRX70 160.4mm / 6.31" (pin-to-pin) BRX90 188.3mm / 7.41" (pin-to-pin)
+ Portal gearbox ratio: 1:1
+ Requires 44mm / 1.73" wheel barrel clearance (to clear the entire portal gearbox)










Author:Joel Berones

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