Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Tremec HD Wide Ratio
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
Gear Ratios:
- Replaces M-7003-R58
- Gear ratios: 1st 3.27; 2nd 1.98; 3rd 1.34; 4th 1.00; 5th 0.68 (Wide Ratio)
- Features improved shift forks, one-piece counter-shaft, gears made of 4615 steel which increases the torque capacity over that of the M-7003-R58 model
- Input shaft is 10 spline 1.0625 and the output shaft is 31 spline
- Requires a unique bellhousing M-6392-R58 to install in a 1979-95 Mustang
- To fit in a 1979-1993 Mustang use M-5059-A crossmember
- To fit in 1994-1995 Mustang, modify vehicle crossmember, lengthen driveshaft .625" and use clutch fork E6ZZ-7515-A
- 31 spline driveshaft yoke required
- Can be used in 4.6L applications with bellhousing M-6392-M46
- Transmission uses Synchromesh fluid
World Class T5
Ford Racing offers their "Z Series" Heavy Duty World Class T5 5-speed transmission with all the refinements and upgrades that had been developed to improve performance and longevity over the years. Rated for 300 ft./lbs of torque World Class T-5 transmission is the perfect solution for Mustangs or other mildly upgraded vehicles as the T-5 Z Series is a direct replacement part for 1985-93 Mustangs and can also fit other Ford models.
Show More
Features- Improved Cobra Style Pocket Bearing
- Improved Synchros and Bearings
- Carbon Fiber 3-4 Blocking Rings
Upgrade your classic or performance build with the Ford Performance World Class T-5 Transmission — a modern take on an iconic gearbox that blends durability, smooth shifting, and reliable performance. Whether you’re restoring a vintage Mustang, building a street cruiser, or enhancing a weekend warrior, this transmission delivers the strength and precision needed for today’s horsepower levels.
The t5 world class transmission from Ford Performance features case improvements, refined gearsets, and upgraded bearings that help it stand up to higher torque loads than earlier T-5 units. That means fewer worries about gear wear or catastrophic failure when you’re launching hard, cruising at highway speeds, or taking on spirited backroads. You’ll appreciate the tighter tolerances and enhanced internal components that give this transmission a solid feel and confidence-inspiring operation.
Smooth, positive shifts are a hallmark of a well-built gearbox, and this world class t5 design delivers. Whether you’re making quick up-and-down shifts on the street or dialing in consistency at the strip, you’ll notice the sharper engagement and reduced throw that makes driving more enjoyable and predictable. The carefully engineered synchros help minimize grind and allow efficient power transfer through every gear.
Installation and fitment are straightforward for popular Ford applications, making this transmission a go-to choice for pro builders and home mechanics alike. Whether you’re pairing it with a small-block powerhouse or a modern performance mill, you’ll benefit from a transmission that’s built to handle real-world demands.
If you’re ready to replace a worn unit or upgrade for stronger, smoother performance, the world class t5 transmission is a proven solution that enhances drivability and reliability — making it a smart investment for any Ford enthusiast.
