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Description
Boom Racing Complete Rear Assembled BRX90 Portal PHAT™ AxlePRODUCT RESOURCES Instruction Manual Complete Rear Assembled Portal Axle For BRX70 & BRX90 BRPT7022 BRPT9022 _20231021_1697858996_1705044972. Pdf 7. 31 MB TAGGED CATEGORIES: AXLE & ACCESSORIES PRODUCT INFORMATION: This is a complete set of rear assembled BRX90 portal PHAT axle set. This is a heavy duty axle set designed for performance based scale RC builds. Designed for both linked and leaf spring setups. Use this axle as a base for any custom
PRODUCT RESOURCES
TAGGED CATEGORIES:
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This is a complete set of rear assembled BRX90 portal PHAT™ axle set.
This is a heavy-duty axle set designed for performance-based scale RC builds. Designed for both linked and leaf spring setups. Use this axle as a base for any custom builds.
Packed with many desirable features; a heavy-weighted cast alloy axle housing for low CG, reversible axle bevel gear positions, leaf spring over and under axle (optional), detachable aluminum CNC truss, adjustable caster angle, and more.
It uses top-quality drivetrain components that are heavy-duty and efficient, including a set of hardened steel triangular keyed AR44 axle gears (30/8T) and a pair of BADASS™ steel rear drive shafts for ultimate strength and durability.
The portal gearbox is designed with four heavy-duty hardened steel gears each for strength and durability.
Includes black color XT diff cover and black color third member unit (fits Reverse AR44 Helical Cut Bevel Gear for running Counter Rotating Center Drive Shafts usually used in the rear axle).
Specification:
- Width: 188.3mm / 7.41" pin-to-pin (BRX90 portal axle front and rear axles are the same width)
- Requires 44mm / 1.73" wheel barrel clearance (to clear the entire portal gearbox)
- Portal gearbox ratio: 1:1
- Weight: 261.5g
- Portal Gearbox Size:
- Width: 23.5mm
- Height: 30.5mm (21.5mm above shaft / 9mm below)
Features:
- Additional 15mm / 0.59" ground clearance at the pumpkin over BRX90 straight axle
- CNC aluminum portal lockout and cover
- BADASS™ heavy-duty steel rear driveshafts and portal driveshafts for ultimate durability and strength for the axle drivetrain
- Four heavy-duty hardened steel metal gears in each portal gearbox
- Narrow axle setup for super scale builds and smaller 1/10 bodies
- Cast PHAT™ axle housing - strong, durable, and heavy which keeps the CG low
- Anti-twist steel brackets to prevent axle twist
- Reversible axle gear in the housing (swap gear to the opposite side for counter rotation center drivetrain setup)
- Standard AR44 high pinion gear & input shaft for better clearance
- Leaf spring over and under the axle housing option
- CNC aluminum truss included for linked setup (remove truss for leaf spring option for ultimate scale look)
- Removable third member for 6x6 / 8x8 pass-thru option
- Third member high pinion angle for higher clearance
- Full rubber sealed bearings
- Full 12.9-grade hardware
Includes:
- 2x CNC Aluminum Portal Lockout #BRPT9023B
- 2x CNC Aluminum Portal Cover #BRPT003
- 2x BADASS Portal Rear Driveshaft #BRPT9023A
- 2x BADASS Portal Shaft Spindle #BRPT007
- 4x Hardened Steel Gear 20T
- 4x Hardened Steel Gear 16T
- 2x Anti-Twist (0 Deg) Steel Bracket (Left & Right) #BRPT004
- 1x Cast Alloy PHAT Axle Housing #BRLC7024
- 1x Cast Alloy XT Pumpkin Diff Cover #BRLC7088
- 1x AR44 30/8T Triangular Keyed Hardened Steel Gear Set (Ring/Pinion Gear + Spool) #BR955020
- 1x CNC Aluminum Truss #BRLC7004
- 2x CNC Aluminum Link Mount #BRLC7005
- 1x M3 Nyloc #BRASNUTM3
- 22x Full Rubber Ball Bearings
- 4x Washer
- 5x Spacer D5X8X0.1 #BRASSPD5801
- 2x E-Clip #BRASEC30
- Full 12.9 Grade Screws
When you receive the axle:
Make sure to grease up the axle set. You can fill up the empty space with diff grease surrounding the bevel gear and input shaft.
The gear positions are factory setup and should be ready to go. Rotate the drivetrain by hand for physical inspection.
Install spacers accordingly between the center driveshaft and the input shaft to prevent input shaft from unnecessary slop.
Optional Parts:
- Anti-Twist (10 Deg Positive Caster) Steel Bracket (Left & Right) #BRPT004+10
- Rear Skid Plate for BRX70/BRX80/BRX90 PHAT™ Axle #BRLC7086R
- Classic Diff Cover for BRX70/BRX80/BRX90 PHAT™ Axle Black #BRLC7026
- Steel Leaf Spring Channel w/ Shock Mount for BRX70/BRX80/BRX90 PHAT™ Axle (2) #BRLC7010
- Color: Black
- Package total weight: 322.00 grams (incl. packaging)
- Package size: 9.00 x 24.00 x 8.00cm
- Factory description: Boom Racing Complete Rear Assembled Portal Axle for BRX90
- Manufactured by Boom Racing
- Manufacturer number: BRPT9023
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Good quality
Size: Large, Color: Dinos Frills (Gray)
we’ve had many godog toys over the years and although my dog eventually rips through them I do find that they last longer than other cheap toys. Overall very well made!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
★★★★★ 5
Cute and fairly long lasting
Size: Large, Color: Dinos Frills (Red)
Lasted from Nov 13th, 2024-August 20th, 2025 lol very impressive. She played with it nearly daily and loved the big squeak. The squeak box was just ripped out so she probably won’t play with it anymore. Happy to order another!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 21, 2025
★★★★★ 4
He was OBSESSED!!!
Size: Large, Color: Dinos Frills (Gray), Size: Large, Color: Dinos Frills (Gray)
Our year and a half old lab was excited the moment he saw it come out of the box ! He had many toys that he tore into shreds within a day so this was his first “heavy toy “ that wasn’t easy to tear .
I think he loves the design and feel of it , as he carried this thing EVERYWHERE and even to bed . Him and his sister share toys but this was his , he claimed it lol
Now if it wasn’t for us telling him to stop trying to kill the Dino he could have easily tore into this thing within a couple of days . However since he started chewing gently he became obsessed with the squeaker , and used that as an alarm that he was up every morning in bed 😂
The quality of the product is actually pretty good but it’s not bullet proof, and our smart dog was able to sneakily tear a whole in the nose and some how pull out the stuffing .
All in all I would definitely buy another toy from this company because they are made with quality for dogs , and lasted about three weeks longer than his average toys ! It was his favorite toy 💕
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 3, 2023
★★★★★ 5
More Durable Than Most
My puppy likes this. He ripped up the stuffing pretty quickly but the rope innards are strong. Both a tug toy and chew. I would prefer it unstuffed so 4 ⭐️ instead of 5.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 11, 2025
★★★★★ 5
My dogs favorite toy
Color: Ropiez Dragon
The dragon is pretty durable but I will say my dog chews off the horn the first chance she gets. There is no stuffing except for the horn. Holds up well in a tug of war and play. For an average to moderate aggressive dog it hold up for awhile. It’s not indestructible it will tear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2024
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