https://www.amazon.com/RCScrewZ-Traxxas-Slash-Stainless-tra039/dp/B009ADRDOE/ref=sr_1_1?dchild=1&keywords=slash+4x4+screw+kit&qid=1595298505&sr=8-1 Saved me so many times on my slash and rustler... I would get a few extra drive shafts because those have been breaking on me here and there. I would get an extra bearing kit as well. You can order most of these on traxxas website. Super cheap as well. Anything else can be found on amazon/ebay. Go through your manual to type in the correct parts # to make sure you never make a mistake through amazon/traxxas/ebay ordering..