Spidertrax Ultimate 40 Spline 300M Full Float Axle Shafts

With over 3 years of competition testing and more top place finishes than we can count, Spidertrax Ultimate 35 Spline Floater Axle Shafts have quickly become the #1 full floating axle among top rock crawling and rock racing teams.

Note: Axle shafts are sold individually (single). This axle shaft is made to order and takes approximately 4-6 weeks to ship.

But what makes Spidertrax axles outperform the competition in ALL areas of quality, strength, and price? Here is a list of key advantages on what makes our axle shafts stand out from the crowd:

• Spidertrax starts with only the finest US grade 300M billet chromoly and carry out all CNC manufacturing operations right here, in-house, in Colorado USA. This allows us to provide an unmatched level of quality control while passing significant cost savings on to you.
• All heat treatment is done AFTER machining and never before. This provides far more strength than simply working with pre-heat treated material, rough cutting some splines, and calling it good. After heat treatment, they perform a deep freeze, or a Cryogenic freeze as it is commonly called, to the 300M material. Spidertrax uses a superior method for deep freezing that goes beyond simply cooling the part. After the axle shaft is heat treated, it is heated back up to a critical temperature at which point it is immediately deep freezed. This entire process improves the molecular structure of the axle shafts and has been a proven technique, when done correctly, in improving shaft strength and longevity. For those wondering why the 300M versions of these shafts are more expensive than the 4340 counterparts, this process, plus raw material cost, is the reason why.
• Spidertrax turns down the entire shaft so the shaft diameter is smaller than the major diameter of the splines. This provides two key advantages. First, by choosing the correct shaft diameter they allow for an ideal amount of shaft torsion, critical for overall shaft longevity. Second, the axle shaft splines are protected from taking the full load on the shaft, in-turn making the splines much stronger. Anyone who has seen twisted splines on a shaft that has not been machined down like ours knows first hand what a difference this can make.
• If you're building a complete Spider 9, we know exactly what components you're running and how they are all designed to work together. Therefore, we can make sure your shafts fit perfect in every way. All critical areas are covered, commonly missed by Spidertrax's competition, such as proper snap ring location and corrected adjustments in shaft length based on locker choice.
• Spidertrax is tooled up to manufacture shafts up to 56" in overall length.
• When building your Spider 9 axle, we make it easy to calculate your axle shaft lengths using an Excel spreadsheet called the "Spider 9 Housing & Shaft Calculator". This Excel spreadsheet can be downloaded online for free by clicking: (front axle calculator). or (rear axle calculator)
• All parts come with a "Limited Lifetime Warranty", so you are covered for life from defects in material and workmanship.
  • Spidertrax warrants only to the original purchaser that all products will be free from defects in materials and workmanship. The foregoing warranty is subject to the proper installation, operation, and maintenance of the product in accordance with the installation instructions supplied. Return Authorizations, or RAs, are required for all Limited Lifetime Warranty claims. Do not ship your product back prior to receiving an RA number from Spidertrax. RAs can be requested online under the My Account tab or by any method on the Contact Us page. Be sure to have your order number (confirmation number) ready when calling. Spidertrax reserves the right, before having any obligation under this Limited Lifetime Warranty, to inspect the damaged product and all costs of shipping the product to Spidertrax for inspection shall be borne solely by the purchaser. Spidertrax's sole obligation under the foregoing warranty is, at Spidertrax's option, to repair, replace or correct any such defect that was present at the time of delivery. The foregoing warranty is not transferable to another party and does not apply to any purchaser who bought the product from a reseller or distributor not authorized by Spidertrax. Please note, Amazon.com is NOT an authorized reseller/distributor of Spidertrax products.

When ordering your Spidertrax 35 Spline Ultimate Floater Axle Shafts, please refer to the drawing below when entering in your measurements for options Sa or Sb. The unit of measurement is inch and this number should be keyed in using decimal format.