FREE 1 to 3-Day Delivery on Orders $119+ Details

Talk to a Mustang Sales Tech
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Black Friday is Here! Shop Early Deals >
Get $80 Off Redeem Now >

Find Gears for your Mustang

USA Standard Gear Ring and Pinion Gear Kit; 5.13 Gear Ratio (05-09 Mustang GT)Find parts that fit my vehicle

Item 403002
Product Image
USA Standard Gear Ring and Pinion Gear Kit; 5.13 Gear Ratio (05-09 Mustang GT)
Verify parts fit and get product recommendations.
Mustang Sales Techs: Connect Now M-F 8:30A-11P, Sat-Sun 8:30A-9P
Call now 1-877-887-1105 Chat Now
$0.00
22 Reviews
Our Price

$299.89 kit

to: 43215
Please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
Add to Cart
Save for later
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

    Loading Indicator

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features & Specs

      • Racing Style Ring & Pinion Gear Set
      • Suitable for Street Use
      • Gear Ratio: 5.13:1
      • Ring Gear Diameter: 8.8 in.
      • 41 Gear Teeth
      • 30 Pinion Spline Count
      • 10 Cover Bolts
      • 10 Ring Gear Bolts
      • Durable AISI 8620 Steel Alloy
      • Professional Install Recommended
      • 1-Year Warranty
      • Fits 2005-2009 Mustang GT

      Description

      Designed for Street & Track. One of the most obvious ways to boost the performance of your 2005-2009 Mustang GT is by upgrading the gear ratio to improve low end torque and increase acceleration rate. The USA Standard Ring Gear and Pinion Kit - 5.13 Gears achieves both objectives while still leaving you money in the kitty to buy a celebratory pizza.

      5.13 Gear Ratio. The highest factory gear ratio available for the 2005-2009 Mustang GT is 3.55:1. The USA Standard Ring Gear and Pinion Kit comes in a 5.13 ratio, delivering faster times off the mark. True, you won't get any happy endings at the fuel pump but, when you're racing, you don't expect savings here, do you?

      Long-lasting Construction. The USA Standard Ring and Pinion Kit is manufactured from AISI 8620 carburizing alloy steel. You benefit from an automotive part with improved case/core properties. Precision machined to accommodate anything from the most common to the rarest differential applications.

      Installation. Full instructions are provided for those who have a high level of mechanical expertise and want to perform the installation themselves. Otherwise, experts recommend having the ring gear and pinion kit installed by a professional.

      Warranty. The USA Standard Ring Gear and Pinion Kit - 5.13 Gears is covered by a one-year warranty against defects in materials and workmanship. Regular exclusions apply.

      Application. The USA Standard Ring Gear and Pinion Kit - 5.13 Gears fits all models of 2005-2009 Mustang GT.

      Fitment:

      Details

      USA Standard Gear ZG F8.8-513

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Pinion Gear
      • (1) Ring Gear
      • Instructions
      4.5

      Customer Reviews (22)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Mustang

      • Bullitt - 08, 09
      • GT - 05, 06, 07, 08, 09

          Related Mustang Categories