2PCS Brass Steering Knuckle Cup for Axial SCX24 90081 RC Car Vehicles Model Spare Parts
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It's a great product. They really add some weight to the front of your scx. I was worried that they won't weigh enough, but it's not an issue. Add a diff cover and some wheel weights, and this thing will stick to the ground. I've just added some soldering wire around the axels for now. Make sure to fit the correct cup to the correct side of the axel, otherwise they will not function properly. Also, the bearings don't sit as snug as on the plastic cups, but this is not a problem. Just don't lose them. I also used the stock screws since the seem to work better with the bushings, which is a great addition to your rig. Further than that, I love these. They're affordable and only benefit your car. I definitely suggest getting these if you don't already have them.
great value and highly recommend this for the mini rc crawler. great upgrade, and fast delivery. all fittings included.