Original: $56.99
-65%$56.99
$19.95The Story
This is the even upper a-arm for the Yerf Dog GX 150
MADE IN THE USA WITH 100% AMERICAN STEEL
Â



Instead of discontinuing our USA-made product line, in 2017 and 2018 we doubled down and invested in new equipment and processes to make it easier to keep these items on the shelf long term. And lower prices! Read about it here.
Â
BUY BDX - THE TOUGHEST GX150 PARTS AVAILABLE!
Â

Â
Â
Â
FITS 3RD SPINDLE GENERATIONS
This arm fits the 3rd Generation setups where the A-Arms are all equal length.
Â
Â
FITS 1/2" GX150 BULKHEADS (AND EASILY DIY CONVERTED TO 5/8")
Â
Most GX150's have 1/2" A-Arm bolts. Our arms match that common style, with genuine Oillite self-lubricating bearings/bushings.
If you have the less common 5/8" A-Arm bolts, you can easily use a 5/8" drill bit to ream out the pivot tube. A small amount of the ID will be removed. This A-Arm replaces BOTH styles. We don't pre-convert them to 5/8".
Â
HD SUPER OILITE® SELF-LUBRICATING BUSHINGS
Â

The BDX bushings are self-lubricating Super Oilite® Flange Bearings. Genuine straight from Oilite, no knockoffs. They're oil impregnated with synthetic "Extreme Pressure AM3-SPD®". Made in the USA.
The grey color of the bushing is due to the addition of sintered iron, making our bushings much tougher than the original bronze pieces.
Â
PRECISION CNC CUT 3/8" THICK JOINT MOUNTS
Our tabs are 3x thicker than stock and will NOT rip, break, or bend. Precision CNC cut, and more precise than stock.
Â

Â
ACCEPT NO SUBSTITUTES!
Don't fall for guys telling you to save a buck and cut your own. You don't want to cheap out on parts that hold your wheels on. We've seen some hack jobs, that in the end get sent to us for proven reinforcements.
Â

Â
SUPERIOR ACCURACY!
When it comes to accurate dimensions, our arms win hands-down. Turns out that the stock A-Arms aren't very consistent or accurate. No wonder you're having wonky steering problems even since the machine was new.
Â
DEAD-NUTS CENTERED BDX ALIGNMENT, EVERY TIME


VERSUS INCONSISTENT STOCK ARMS, YOU'RE LOOKING AT 1/4" OFF CENTER!

Â
LIFETIME GUARANTEE
Â
This part comes with a Lifetime Guarantee against breakages of the tab. After seeing many Yerfs with broken A-Arm tabs over the years, we designed this Heavy Duty version to combat the breakages. This unit comes with super thick mounting tabs for the ball joints, eliminating separation of the outer tab ring from the arm.
Note: BDX Heavy Duty Ball Joints must be used with this item. We don't sell original A-Arms due to their tab design.
Â
-
Fits 3rd Generation Setups
-
Fits all bulkheads!
-
Super Thick Tabs
-
Lifetime Guarantee
-
HD Ball Joints must be used!
-
Sold Individually
- Item #11
Â
Â
SUPPORT VENDORS WHO
SUPPORT THE SPORT!
Your order helps fund future upgrades!
|
BDX DIGITAL GY6 DYNOÂ PROJECT
REAL TESTING, TO SHARE REAL DATA
Our testing is funded 100% by your purchases. Don't fall for claims elsewhere that are too good to be true! Save money and get performance parts that actually MAKE A DIFFERENCE! HYDRAULIC BRAKE DYNO. NOT INERTIA! Allows us to find weak points and make precise engine improvements. |
|
USA-MACHINEDÂ BIG POWER BUILT ENGINES
175CC, 184CC, OR 187CC SCREAMERS!
Quotes from some GY6 engine builders will make you crap your pants. Our unique R&D nails reliability and POWER without adding BIG INFLATED COSTS. · Affordable GY6 175cc big bore crate engines · Custom GY6 hi-comp stroker pistons (up to 190cc) |
|
RELIABLE POWER BUILDSÂ UP TO 187CC
R&D DONE RIGHT
GOING STROKER? YOU NEED THIS PISTON
Made specifically for +2.5mm or +3mm stroker builds. Our GY6 stroker pistons RESOLVE the common causes of engine failure when using stroker crankshafts. Designed and machined right here in the BDX SPEEDSHOP! Use one to stroke your engine up to 187cc without janky unreliable cylinder spacers! |
|
HOMEGROWN AMERICANÂ WORK
AND INGENUITY
UPGRADES MADE IN USA - BUILT IN USA
Where do cheaper China parts outfits send your money? We put your funds to work right here in the USA making these machines faster and stronger! Thank you for your business! |
|
JOIN OURÂ ADVICE FORUM!
GET ANSWERS YOU NEED
Don't spend more than you need to fix or upgrade your machine. Get accurate advice that will save you money and hassle. Read the rules, and join the conversation! |
If this item breaks or bends we will send you a brand new replacement or repair free of charge. Normal eventual wear is not covered. This item is built tough, but abuse is not covered (jumping, crashes, etc). This guarantee is good for as long as you own the vehicle.
Return Policy
We accept returns on new unused items. Ship the item to Buggy Depot within 30 days of arrival, and receive a refund or store credit minus our restocking fee (see Return Policy for full details).
Items which have been used or installed will not be accepted for refund. NO EXCEPTIONS.
Unusually large or special order items may not apply under this policy, and may have their own return conditions as stated in the individual product listing.
Returns must include all hardware, packaging and be shipped in a sturdy shipping box. Items received that do not meet these criteria will not be accepted and will be sent back to you at your cost.
In the case of a defective item, please see details of the 30-day warranty on our Return Policy page.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
This is the even upper a-arm for the Yerf Dog GX 150
MADE IN THE USA WITH 100% AMERICAN STEEL
Â



Instead of discontinuing our USA-made product line, in 2017 and 2018 we doubled down and invested in new equipment and processes to make it easier to keep these items on the shelf long term. And lower prices! Read about it here.
Â
BUY BDX - THE TOUGHEST GX150 PARTS AVAILABLE!
Â

Â
Â
Â
FITS 3RD SPINDLE GENERATIONS
This arm fits the 3rd Generation setups where the A-Arms are all equal length.
Â
Â
FITS 1/2" GX150 BULKHEADS (AND EASILY DIY CONVERTED TO 5/8")
Â
Most GX150's have 1/2" A-Arm bolts. Our arms match that common style, with genuine Oillite self-lubricating bearings/bushings.
If you have the less common 5/8" A-Arm bolts, you can easily use a 5/8" drill bit to ream out the pivot tube. A small amount of the ID will be removed. This A-Arm replaces BOTH styles. We don't pre-convert them to 5/8".
Â
HD SUPER OILITE® SELF-LUBRICATING BUSHINGS
Â

The BDX bushings are self-lubricating Super Oilite® Flange Bearings. Genuine straight from Oilite, no knockoffs. They're oil impregnated with synthetic "Extreme Pressure AM3-SPD®". Made in the USA.
The grey color of the bushing is due to the addition of sintered iron, making our bushings much tougher than the original bronze pieces.
Â
PRECISION CNC CUT 3/8" THICK JOINT MOUNTS
Our tabs are 3x thicker than stock and will NOT rip, break, or bend. Precision CNC cut, and more precise than stock.
Â

Â
ACCEPT NO SUBSTITUTES!
Don't fall for guys telling you to save a buck and cut your own. You don't want to cheap out on parts that hold your wheels on. We've seen some hack jobs, that in the end get sent to us for proven reinforcements.
Â

Â
SUPERIOR ACCURACY!
When it comes to accurate dimensions, our arms win hands-down. Turns out that the stock A-Arms aren't very consistent or accurate. No wonder you're having wonky steering problems even since the machine was new.
Â
DEAD-NUTS CENTERED BDX ALIGNMENT, EVERY TIME


VERSUS INCONSISTENT STOCK ARMS, YOU'RE LOOKING AT 1/4" OFF CENTER!

Â
LIFETIME GUARANTEE
Â
This part comes with a Lifetime Guarantee against breakages of the tab. After seeing many Yerfs with broken A-Arm tabs over the years, we designed this Heavy Duty version to combat the breakages. This unit comes with super thick mounting tabs for the ball joints, eliminating separation of the outer tab ring from the arm.
Note: BDX Heavy Duty Ball Joints must be used with this item. We don't sell original A-Arms due to their tab design.
Â
-
Fits 3rd Generation Setups
-
Fits all bulkheads!
-
Super Thick Tabs
-
Lifetime Guarantee
-
HD Ball Joints must be used!
-
Sold Individually
- Item #11
Â
Â
SUPPORT VENDORS WHO
SUPPORT THE SPORT!
Your order helps fund future upgrades!
|
BDX DIGITAL GY6 DYNOÂ PROJECT
REAL TESTING, TO SHARE REAL DATA
Our testing is funded 100% by your purchases. Don't fall for claims elsewhere that are too good to be true! Save money and get performance parts that actually MAKE A DIFFERENCE! HYDRAULIC BRAKE DYNO. NOT INERTIA! Allows us to find weak points and make precise engine improvements. |
|
USA-MACHINEDÂ BIG POWER BUILT ENGINES
175CC, 184CC, OR 187CC SCREAMERS!
Quotes from some GY6 engine builders will make you crap your pants. Our unique R&D nails reliability and POWER without adding BIG INFLATED COSTS. · Affordable GY6 175cc big bore crate engines · Custom GY6 hi-comp stroker pistons (up to 190cc) |
|
RELIABLE POWER BUILDSÂ UP TO 187CC
R&D DONE RIGHT
GOING STROKER? YOU NEED THIS PISTON
Made specifically for +2.5mm or +3mm stroker builds. Our GY6 stroker pistons RESOLVE the common causes of engine failure when using stroker crankshafts. Designed and machined right here in the BDX SPEEDSHOP! Use one to stroke your engine up to 187cc without janky unreliable cylinder spacers! |
|
HOMEGROWN AMERICANÂ WORK
AND INGENUITY
UPGRADES MADE IN USA - BUILT IN USA
Where do cheaper China parts outfits send your money? We put your funds to work right here in the USA making these machines faster and stronger! Thank you for your business! |
|
JOIN OURÂ ADVICE FORUM!
GET ANSWERS YOU NEED
Don't spend more than you need to fix or upgrade your machine. Get accurate advice that will save you money and hassle. Read the rules, and join the conversation! |
If this item breaks or bends we will send you a brand new replacement or repair free of charge. Normal eventual wear is not covered. This item is built tough, but abuse is not covered (jumping, crashes, etc). This guarantee is good for as long as you own the vehicle.
Return Policy
We accept returns on new unused items. Ship the item to Buggy Depot within 30 days of arrival, and receive a refund or store credit minus our restocking fee (see Return Policy for full details).
Items which have been used or installed will not be accepted for refund. NO EXCEPTIONS.
Unusually large or special order items may not apply under this policy, and may have their own return conditions as stated in the individual product listing.
Returns must include all hardware, packaging and be shipped in a sturdy shipping box. Items received that do not meet these criteria will not be accepted and will be sent back to you at your cost.
In the case of a defective item, please see details of the 30-day warranty on our Return Policy page.























