The upgraded Nissan S-chassis rear suspension kit is designed with racing in mind. We have added cool and unique features, such as the new "compression" design toe arm, upgraded camber arm, and reinforced knuckles.
Top-tier materials with an optimized design have allowed for significant weight reduction. The knuckle weighs approximately 2.7kg while being able to withstand peak loads of 5–6G on the tire contact patch of an 1100kg car. The S13 Wisefab knuckle features corrected kinematics compared to OEM, incorporating anti-squat, higher roll center, reduced camber gain, and adjustable bump steer for maximum grip and performance. All parts in this suspension kit are also available as spare parts.
Recommended alignment parameters are as follows:
Camber: -0.5
Toe: 3–10 mm toe-in per side
- New and unique design for the toe arm. It compresses under heavy impact, which is why it is now called a "compression arm." This reduces the likelihood of damage to the subframe, knuckles, and coilovers.
- Note! You can also upgrade pre-2021 Wisefab S13 rear suspension kits to the new toe arm design by purchasing the "S13 Rear Suspension Mod Kit."
- The new camber arm has 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 offer more room for bump steer adjustment.
- In addition to being drop knuckles, the kinematics have been revised. Maximum grip is the keyword, and drop knuckles alone are 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 10 kg 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 sphericals.
Before Ordering
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 are no additional charges beyond the total amount paid at checkout.
〇 Checking Compatibility
All product databases are based on North American vehicles (USDM), so please check whether they can be installed on Japanese domestic vehicles (JDM) before ordering. (Please feel free to contact us if you are unsure if the listed product is compatible with your vehicle. Our support team will investigate for you.)
If you order without verifying compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and vehicle model on our homepage tabs, this does not necessarily mean they are compatible with Japanese-spec vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of settlement. Shipping estimates are calculated automatically 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 automated calculation. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please order with time to spare. If you are in a hurry, please contact us in advance to confirm the delivery date. All products are transported via air freight. They are never shipped by sea freight.
○ Regarding Compliance with Japanese Vehicle Inspection (Shaken)
The products we handle are basically all designed and manufactured outside of Japan. Please note that they do not comply with the "Japanese Vehicle Inspection System," and we cannot provide strength calculation sheets or similar documentation for that purpose. Therefore, all parts are sold for "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 of the product. Because all products are shipped internationally from outside Japan, there may be shipping damage to the packing box or the product. Please understand that we will only provide returns, refunds, or replacement exchanges for items with shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Furthermore, for products sold through us, all warranty-related matters will be handled "exclusively through us." Please note that we do not handle matters through other companies or distributors located within Japan.