I was looking at the ZRP knuckles for an X3/XRS and luckily, I found Hammer Down enterprises knuckles and oversized bearing/Hubs. They are beautifully machined and engineered for long lasting usage. I believe they have a better design with regards to wear on components and bolt right up to your stock parts. Depending on what aftermarket upper control arms you have, it might take a little modification to get dialed in, but you can't make a part that works with every aftermarket set-up. I purchased the Lonestar MTS kit and with a little modifying on the upper control arms the knuckles worked great. Same mods would have to be done with the ZRP's, that's just what you have to do if you want I true double sheer contact point on the top control arm. Hammer also did a great job taking care of me from the beginning to the end and even shipped me out some of their new 36 MM caps for the upgraded larger size bearing/axle nuts and that was months after I purchased their product. I am a retired military vet, and no company took care of me like hammer did (Price and Service). Incredible service and product.
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High-end performance parts for off-road vehicles and UTVs so you can conquer any terrain. We manufacture machined parts for Can-Am Maverick X3s, Polaris Rzrs, and off-road trucks. Manufactured in the USA
