This product, SR2944-31, is an output flange (side flange) for Winters Performance 10-inch quick-change differentials. In the exploded view: #39
This is a replacement part compatible with the Porsche 930-type CV joint, which is standard equipment on quick-change differentials.
Side flanges gradually wear down due to mileage, high-load driving, hitting curbing, or contact with other vehicles during racing. This product can be purchased to refresh your worn-out output side flanges or as a spare part.
Quick-change side flanges come in two types: 31-spline or 35-spline. Please confirm that your current side flange is a 31-spline / 930 flange specification before placing your order.
The 35-spline / 930 flange specification side flange can be viewed here.
Manufacturer: Winters Performance
Part Number: SR2944-31
Compatible Differential: Winters Quick Change
Connection Type: 930-type CV Joint
Spline Count (Inner): 31-spline
Driveshaft Type: CV Joint
Material: High-strength steel
Sales Unit: 1 piece (for one side)
In exploded view: 39
※If you need parts for both sides, please order a quantity of 2.
Before Ordering
〇 Regarding Import Consumption Tax
At the Shaft-ya shopping site, we pay the import consumption tax incurred during customs clearance on your behalf; therefore, you will not be charged any additional fees beyond the total amount paid at checkout.
〇 Compatibility Confirmation
All product databases are based on North American vehicles (USDM); please verify if the part is compatible with Japanese vehicles (JDM) before ordering. (If you are unsure whether a listed product fits your vehicle, please feel free to contact us. Our support team will be happy to assist you.)
If an order is placed without verifying compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model via the tabs on our top page, this does not necessarily mean they will fit Japanese-model vehicles without modification.
All product information has been translated into Japanese using translation software. As there may be confusing expressions, please contact us with any questions before ordering.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Estimates for shipping can be calculated automatically by entering your delivery address on the checkout page. For large items such as body parts, there are rare cases where the automatically calculated shipping cost differs significantly from the actual cost. In such instances, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic Japanese shipping, international delivery takes approximately 7 to 14 days, so please allow sufficient time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all items are shipped via air freight. We do not use sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Generally, all products we handle are designed and manufactured outside of Japan. Please be aware that these products are not compliant with the "Japanese vehicle inspection (Shaken) system," and we are unable to provide strength calculation documents or similar paperwork for the purposes of Japanese vehicle inspection. Therefore, all parts are sold for the purpose of "circuit, private property, and off-road use," and installation and usage are at your own risk.
○ Regarding Warranty
Please check the contents of your order immediately upon arrival. As all products are shipped internationally from outside of Japan, there may be cases of shipping damage to the packaging or the product itself. Please understand that we will only provide returns, refunds, or replacement products if you contact us within 7 days of receipt regarding damaged items, defective products, or items that differ from your order. Furthermore, for products sold through our company, all warranty-related support will be handled "exclusively through us." Please note that we do not facilitate support through other domestic companies or agents in Japan.