* Gear ratios: These differ slightly between model years and even trim packages within a given year.
* Tire size: Larger diameter tires will result in a higher speed for a given RPM.
* Rear-end gear ratio: This impacts how many engine revolutions are needed for a given vehicle speed.
To find the approximate speed for each gear at redline *for your specific Mustang GT*, you'd need to:
1. Determine your exact year and model: This will help narrow down the gear ratios.
2. Find the gear ratios: You can usually find this information in your owner's manual, online forums dedicated to your Mustang model year, or through a vehicle specifications website.
3. Know your tire size: Check the sidewall of your tires.
4. Use a gear ratio calculator: Many online calculators exist that allow you to input your gear ratios, tire size, and redline RPM to determine the speed in each gear at redline.
Without this specific information, any answer I provide would be a rough estimate and potentially inaccurate for your car.