The upgraded Nissan S-chassis rear suspension kit is designed with racing in mind. We have added cool and unique features, including a new "compression" design toe arm, upgraded camber arms, and reinforced knuckles.
Top-quality materials with optimized design have resulted in a significant weight reduction. The knuckle weighs approximately 2.7kg while being able to withstand peak loads of 5–6G on a 1100kg car's tire contact patch. The S13 Wisefab knuckle features corrected kinematics compared to OEM, incorporating anti-squat, higher roll centers, less camber gain, and adjustable bump steer for maximum grip and performance. All parts of this suspension kit are also available as spare parts.
Recommended alignment parameters are as follows:
Camber: -0.5
Toe: 3 to 10 mm toe-in per side
- A new and unique design for the toe arm. It is now called a "compression arm" because it compresses under heavy impact. This reduces the risk of damage to the subframe, knuckles, and coil-overs.
- Note! You can also upgrade a Wisefab S13 rear suspension kit from before 2021 to the new toe arm design by purchasing the "S13 Rear Suspension Mod Kit."
- The new camber arms have been included in this kit for some time, but it is still worth mentioning that the "double adjuster" makes camber adjustment extremely easy.
- The upgraded knuckles have been reinforced and provide more room for bump steer adjustment.
- Not only are the knuckles dropped, but the kinematics have also been corrected. Maximum grip is the keyword, and a dropped knuckle alone is not enough if you need the right combination of roll center position, camber gain, anti-squat, and bump steer. That is why we have completely overhauled the kinematics.
- Light and strong. Over 10kg lighter than OEM components while maintaining the necessary strength and rigidity.
- Bump steer adjustment. You can adjust bump steer by changing the position of the rod end in the slot.
- CrMo rod ends and spherical bearings.
Before Placing Your Order
〇 Regarding Import Consumption Tax
At Shaftoya Shopping Site, we pay the import consumption tax incurred at the time of import on your behalf, so there will be no additional charges beyond the total amount paid at checkout.
〇 Checking Compatibility
Our entire product database is based on North American vehicles (USDM), so please confirm compatibility with Japanese vehicles (JDM) before ordering. (Please feel free to contact us if you are unsure if the listed product fits your vehicle. Our support team will be happy to look into it for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are filtered by selecting the year, manufacturer, and model using the tabs on our top page, this does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. There may be confusing expressions, so please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, the actual shipping cost may occasionally differ significantly from the amount automatically calculated. In such cases, we will contact you individually by email.
All products are generally shipped internationally from our US warehouse. Unlike domestic Japanese shipping, international shipping takes about 7 to 14 days, so please allow plenty of time for your order. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are transported by air freight; they are not shipped by sea.
○ Regarding Compliance with Japanese Vehicle Inspection (Shaken)
All products we handle are designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength calculation documents for the purpose of such inspections. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, packaging boxes and products may sustain shipping damage. We will provide returns, refunds, or replacement exchanges only if you contact us within 7 days of receipt regarding products with shipping damage, defective products, or items different from what was ordered. Please understand that for products sold through us, warranty support will be provided "only through us." Please note that we do not provide support through other companies or distributors located within Japan.