Hobbypark4pcs Heavy Duty Brass Steering Knuckle Weight Outer Portal Drive Housing Cover Counterweight Block for Traxxas TRX-4 1/10 RC Crawler Car

They are dense and heavy, extremely clean machining. The price to quality ratio is very good. Fit right on, I got the correct screws, and made a noticeable performance difference. Don’t really see how people can leave a one star review crying, even if they did get the wrong screw. For the price, I wasn’t even expecting to get hardware. It was just a nice bonus

The fit was exact, screws were the correct fit. They definitely improved the was my rc moves. Quite pleased.

Perfect fit. Great quality. Very satisfied!

Gotta give these a 5. I got some new tires that were a little bigger than I thought which led me to get 100 mm shocks since the stock 90s weren’t doing it, and that made it sit fairly high so I then needed some weight on the axles. I settled for these as they were the best option compared to all metal axles and stuff, they really add some good weight to it. I wish I got them before I changed the tires and shocks because they would make a big difference then too. They definitely help now that it’s taller but it still has a little trouble on really steep stuff. Comes with screws, but it was a little tricky to get them on, although I got them with some persistence. Overall they solved the problem I had, so I would recommend them again if you need to add a little weight to the axles!

You will need hex extenders to fit the stock wheels. I will try some 8mm. I am concerned about fender rubbing but have tried three brands now and same story with each. Otherwise nice value compared to other brands and MUCH closer to fitting over the hot racing brass and better value.