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

    SEALED POWER Moly Piston Ring Set E251K60

    SKU: SEAE251K60
    Product information
    • Weight1.103 lbs
    • Dimensions5 × 5 × 3.2 in
    • Quantity

      Kit

    • Variant

      Yes

    • Variant Group

      Piston Rings155

    • Variant Column

      Bore (standard)

    • Product Line

      Performance

    Details...
    Original price was: $50.95.Current price is: $46.32.Add to cart
    Original price was: $50.95.Current price is: $46.32.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOWARDS RACING COMPONENTS Solid Roller Cam – SBC Max Oval 111133-06

    SKU: HRC111133-06
    Product information
    • Weight8.856 lbs
    • Dimensions24.25 × 3 × 2.75 in
    • Quantity

      Each

    • Material

      Billet Steel

    • Color

      Natural

    • Finish

      Natural

    • Camshaft Lifter Style

      Mechanical Roller Tappet

    Details...
    Original price was: $524.98.Current price is: $477.25.Add to cart
    Original price was: $524.98.Current price is: $477.25.
    Quantity Only 4 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    FEL-PRO Conversion Set CS 9790-4
    Add to wishlist

    FEL-PRO Conversion Set CS 9790-4

    SKU: FELCS9790-4
    Product information
    • Weight1.33 lbs
    • Dimensions24.2 × 12.65 × 1.3 in
    • Set Type

      Conversion Set

    • Oil Pan Drain Plug Gasket Included

      Yes

    • Oil Pan Gaskets Included

      Yes

    • Rear Main Seal Included

      Yes

    • Rear Main Seal 1-Piece

      Yes

    Details...
    Original price was: $91.64.Current price is: $83.31.Add to cart
    Original price was: $91.64.Current price is: $83.31.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    CENTERFORCE Clutch Alignment Tool 50001
    Add to wishlist

    CENTERFORCE Clutch Alignment Tool 50001

    SKU: CTF50001
    Product information
    • Weight0.11 lbs
    • Dimensions7 × 2.65 × 2.1 in
    • Quantity

      Each

    • Color

      Black

    • Material

      Plastic

    • Finish

      Natural

    • Spline Diameter

      1 in

    Details...
    Original price was: $8.37.Current price is: $7.61.Add to cart
    Original price was: $8.37.Current price is: $7.61.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    CENTERFORCE Clutch Alignment Tool 50012
    Add to wishlist

    CENTERFORCE Clutch Alignment Tool 50012

    SKU: CTF50012
    Product information
    • Weight0.1 lbs
    • Dimensions7 × 2.7 × 2.1 in
    • Quantity

      Each

    • Color

      Black

    • Material

      Plastic

    • Finish

      Natural

    • Spline Diameter

      15/16 in

    Details...
    Original price was: $8.37.Current price is: $7.61.Add to cart
    Original price was: $8.37.Current price is: $7.61.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    CENTERFORCE Clutch Alignment Tool 50047
    Add to wishlist

    CENTERFORCE Clutch Alignment Tool 50047

    SKU: CTF50047
    Product information
    • Weight0.12 lbs
    • Dimensions7 × 2.65 × 2.05 in
    • Spline Diameter

      7/8 in

    • Spline Count

      20.0

    • Pilot Diameter

      0.39 in

    • Material

      Plastic

    • Color

      Black

    Details...
    Original price was: $8.37.Current price is: $7.61.Add to cart
    Original price was: $8.37.Current price is: $7.61.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    RIDETECH Drop Spindles 11009300
    Add to wishlist

    RIDETECH Drop Spindles 11009300

    SKU: ART11009300
    Product information
    • Weight21.755 lbs
    • Dimensions14.8 × 9.5 × 8.9 in
    • Quantity

      Pair

    • Driver / Passenger Side

      Driver / Passenger

    • Raised / Lowered Ride Height

      Lowered

    • Raised / Lowered Pin Height Measurement

      2 in

    • Pin Style

      OEM

    Details...
    Original price was: $546.25.Current price is: $475.00.Add to cart
    Original price was: $546.25.Current price is: $475.00.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    ARP BBF Main Stud Kit 255-5502
    Add to wishlist

    ARP BBF Main Stud Kit 255-5502

    SKU: ARP255-5502
    Product information
    • Weight3.91 lbs
    • Dimensions8.8 × 4.2 × 2.4 in
    • Bolt/Stud Kit

      Stud

    • Alloy

      8740

    • Material

      Chromoly

    • Color

      Black

    • Finish

      Oxide

    Details...
    Original price was: $104.26.Current price is: $94.78.Add to cart
    Original price was: $104.26.Current price is: $94.78.
    Quantity Only 6 left in stock!
    -+
    Add to cart
    Add to wishlist

    13