Winters Performance quick change gear sets.  Available in several set numbers to custom match your project and dial in your perfect gear ratio.  Gear sets are REM finished for reduced frictions, lower temperatures, and extended life.  
8620 Steel. Heat Treated. REM Finished. CNC Machined. 10 spline. 1-3/8" Width.
Winters 8540 10 Spline Quick Change Gear Set #40, 19/31 Teeth Winters
Winters 8540 10 Spline Quick Change Gear Set #40, 19/31 Teeth
Sku # 8028500-40
Mfr. Part # 8540R
Condition
New
Brand
Winters
Sold
Set
Details

Winters Performance quick change gear sets.  Available in several set numbers to custom match your project and dial in your perfect gear ratio.  Gear sets are REM finished for reduced frictions, lower temperatures, and extended life.  

  • 8620 Steel
  • Heat Treated
  • REM Finished
  • CNC Machined
  • 10 spline
  • 1-3/8" Width
Specs
Tooth Count
19/31
Spline Count
10
Gear Material
Steel
Minor Spline Diameter
1.10"
Major Spline Diameter
1.25"
Width
1.375"
Centerline of Holes
3.50"
MFG. Part #
8540R
Sold in Quantity
Set
Reviews

Great

Rated
Product Rating
by D on March 07, 2026

Summary: As advertised

Yes, I recommend this product.

I would buy these again

Rated
Product Rating
by BR on February 03, 2026

Summary: Great value!

Yes, I recommend this product.

Yes

Rated
Product Rating
by Jim on December 26, 2025

Summary: Speedway is always fast and reliable

Yes, I recommend this product.

Great gear set

Rated
Product Rating
by Red on December 24, 2025

Summary: Highly recommend, would buy again. Quality in every box

Yes, I recommend this product.

Yes

Rated
Product Rating
by Jim on December 18, 2025

Summary: Great product

Yes, I recommend this product.

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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.