Description

Quick Change Gear Set – 8500 Series – Set 39 – 10 Spline – 4.12 Ratios 6.64 / 2.56 – 4.86 Ratios 7.83 / 3.02 – Steel – Polished – Each

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors.Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About WINTERS

For more than 60 years, Winters Performance Products has been producing high-performance rear ends and driveline components for racing and street use. Their product offering includes everything from quick-change gear sets to shifter assemblies, as well as many components specifically for the sprint car market.

International Shipping

Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.

Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.

Loading international estimates...

Reviews

There are no reviews yet.

Be the first to review “WINTERS Quick Change Gears 8539”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PERTRONIX IGNITION Distributor Cap 022-1602

    SKU: PRT022-1602
    Product information
    • Weight0.24 lbs
    • Dimensions4.2 × 3.1 × 3.05 in
    • Color

      Black

    • Finish

      Natural

    • Quantity

      Each

    • Terminal Material

      Stainless

    • Material

      Plastic

    Details...
    Original price was: $26.00.Current price is: $23.60.Add to cart
    Original price was: $26.00.Current price is: $23.60.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    OPTITORQUE TECHNOLOGIES LLC Ford Damper Bolt Kit 6.0L/ 6.4L Diesel 12pt 11107

    SKU: OTT11107
    Product information
    • Weight0.881 lbs
    • Dimensions6 × 4.5 × 2.5 in
    • Bolt/Stud Kit

      Bolt

    • Washers Included

      Yes

    • Material

      Steel

    • Color

      Black

    • Finish

      Oxide

    Details...
    Original price was: $41.00.Current price is: $36.74.Add to cart
    Original price was: $41.00.Current price is: $36.74.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MR. GASKET Comp. Wheel Studs 4311

    SKU: MRG4311
    Product information
    • Weight1.87 lbs
    • Dimensions9.7 × 7.7 × 1.4 in
    • Quantity

      Set of 10

    • Material

      Steel

    • Color

      Black

    • Finish

      Oxide

    • Thread

      1/2-20 in

    Details...
    Original price was: $70.00.Current price is: $63.39.Add to cart
    Original price was: $70.00.Current price is: $63.39.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    LONGACRE Throttle Spring 2 Pack 52-32500

    SKU: LON52-32500
    Product information
    Details...
    Original price was: $9.76.Current price is: $8.87.Add to cart
    Original price was: $9.76.Current price is: $8.87.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    LONGACRE 17in. Mirror Kit Short 1-3/4in. Bar 52-22530

    SKU: LON52-22530
    Product information
    • Weight1.25 lbs
    • Dimensions17.5 × 3.4 × 3.4 in
    • Material

      Aluminum, Plastic

    • Color

      Black

    • Quantity

      Kit

    • Variant

      Yes

    • Width

      17 in

    Details...
    Original price was: $66.08.Current price is: $60.07.Add to cart
    Original price was: $66.08.Current price is: $60.07.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    TRANS-DAPT COIL BRACKET CHROME 9365

    SKU: TRA9365
    Product information
    • Weight0.35 lbs
    • Dimensions5.3 × 4.65 × 1.55 in
    • Material

      Steel

    • Color

      Chrome

    • Finish

      Plated

    • Quantity

      Each

    • Coil Style

      Canister

    Details...
    Original price was: $13.41.Current price is: $12.19.Add to cart
    Original price was: $13.41.Current price is: $12.19.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HURST Installation Kit 3737897

    SKU: HUR373-7897
    Product information
    • Weight4.6 lbs
    • Dimensions17 × 7.9 × 3.6 in
    • Quantity

      Kit

    • Application Specific

      Yes

    • Hardware Included

      Yes

    • Bushing Included

      Yes

    • Shifter Arms Included

      Yes

    Details...
    Original price was: $440.00.Current price is: $399.95.Add to cart
    Original price was: $440.00.Current price is: $399.95.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WINTERS Quick Change Gears 8508

    SKU: WIN8508
    Product information
    • Weight6.513 lbs
    • Dimensions9 × 5 × 2 in
    • Material

      Steel

    • Color

      Polished

    • Finish

      Polished

    • Quantity

      Pair

    • Variant

      Yes

    Details...
    Original price was: $128.16.Current price is: $116.51.Add to cart
    Original price was: $128.16.Current price is: $116.51.
    Quantity Only 9 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WINTERS Quick Change Gears 8532A

    SKU: WIN8532A
    Product information
    • Weight6.67 lbs
    • Dimensions8.95 × 5.05 × 1.95 in
    • Spline

      10.0

    • Set Number

      32A

    • Gear 1 Tooth Count

      23.0

    • Gear 2 Tooth Count

      33.0

    • 4:12 Ring And Pinion Low Ratio

      2.87

    Details...
    Original price was: $128.16.Current price is: $116.51.Add to cart
    Original price was: $128.16.Current price is: $116.51.
    Quantity Only 5 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Placeholder
    Add to wishlist

    WINTERS Quick Change Gears 8554

    SKU: WIN8554
    Product information
    • Weight7 lbs
    • Dimensions8.95 × 5.15 × 1.95 in
    • Spline

      10.0

    • Set Number

      54

    • Gear 1 Tooth Count

      15.0

    • Gear 2 Tooth Count

      27.0

    • 4:12 Ring And Pinion Low Ratio

      2.29

    Details...
    Original price was: $128.16.Current price is: $116.51.Add to cart
    Original price was: $128.16.Current price is: $116.51.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist

    62