This Winters Performance SR3353-35HD spool is a replacement part for spools standardly equipped on 35-spline quick-change differentials. Made of high-strength steel, this rigid spool eliminates the rotational difference between the left and right wheels, transmitting 100% of the power to both tires. In exploded view: #56
Unlike open differentials or LSDs, a spool eliminates the rotational difference between the left and right sides, significantly improving traction performance during acceleration and corner exits. It is a highly effective reinforced part for competition vehicles that need to transfer power to the road without waste.
At the same time, this part is subject to extreme stress, and long-term use can cause spline play or twisting, so we recommend regular replacement or keeping a spare on hand.
Features
Heavy-duty specification with a high-strength steel structure for superior durability
Reliable, genuine Winters parts compatible with 10-inch quick-change differentials
Ideal for users seeking more direct drive than an LSD provides
High traction, high strength, high reliability
In exploded view: #56
※Winters Performance 10-inch quick-change differentials come in both 31-spline and 35-spline types. Please confirm the spline count of your differential before ordering.
※Shafutoya also carries side flanges for Winters Performance 10-inch quick-change differentials. As these parts are subject to the same loads as the spool, we recommend regular replacement and keeping spares on hand. For more details, click here.
Before ordering
〇 Regarding import consumption tax
At Shafutoya, we cover the import consumption tax incurred during the import process, 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). Please confirm whether the product can be installed on a Japanese vehicle (JDM) before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will check for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, make, and model on our top page, they may not necessarily fit Japanese models 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 checkout. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, the automatic calculation may occasionally differ significantly from the actual shipping cost. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic shipping in Japan, 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 items are shipped via air freight. They are not shipped by sea.
○ Regarding Japanese vehicle inspection (Shaken) compliance
The products we handle are basically designed and manufactured outside of Japan. Please note that they do not comply with the "Japanese vehicle inspection (Shaken) system," and we cannot provide strength calculation documents or similar paperwork for these purposes. Therefore, all parts are sold for "circuit use, private property, or off-road use only," and installation and use are at your own risk.
○ Regarding warranties
Please check the contents of your order immediately upon arrival. Since all products are shipped internationally from outside Japan, there is a possibility of shipping damage to the packaging or the product. We will only accept returns, refunds, or exchanges for defective items, shipping-damaged products, or incorrect items if you notify us within 7 days of receipt. Please understand that for products sold through our company, warranty issues will be handled "exclusively through us." We do not handle issues through other companies or distributors based in Japan.