1998 Ford Mustang GT 5-Speed Manual Transmission Overview
Overview of the 1998 Ford Mustang GT's 5-Speed Manual Transmission
The 1998 Ford Mustang GT came equipped with a T-5 5-speed manual transmission as one of the available transmission options. This transmission was known for its performance capabilities, making it a popular choice for many Mustang owners at the time.
Specifications of the T-5 5-Speed Manual
The T-5 manual transmission used in the 1998 Ford Mustang GT had the following specifications:
- 5 forward gears plus reverse
- All helical-cut gears made of hardened steel
- Synchronizers on all forward gears
- Gear ratios:
- 1st gear: 2.95:1
- 2nd gear: 1.94:1
- 3rd gear: 1.34:1
- 4th gear: 1.00:1
- 5th gear: 0.63:1
- Reverse: 2.90:1
This transmission was durable enough to handle the high torque output of the Mustang GT's 4.6L V8 engine, which was rated at 215 horsepower in 1998 models. The closely spaced gear ratios allowed drivers to keep the engine in its power band while accelerating.
Shifting Characteristics
The T-5 manual transmission had short, firm throws that gave it precise shifting feel. The clutch take-up had a linear engagement characteristic that made it easy to modulate during starts and shifts.
Drivers praised the T-5's performance capabilities, with smooth, fast shifts when driving aggressively. The gear spacing enabled keeping rpm in the peak torque range for strong acceleration. At the same time, the tall overdrive 5th gear made freeway cruising comfortable with the engine running at low rpm.
Advantages of the Mustang GT 5-Speed Manual Transmission
The manual transmission in the 1998 Ford Mustang GT provided several advantages over an automatic transmission option:
Enhanced Driver Control & Connection
The 5-speed manual gave drivers much more control over gear selection, with the ability to choose the best gear for acceleration or highway cruising. This increased driver engagement, making the Mustang GT more fun and exciting to drive.
Having a clutch pedal further enhanced the connection between car and driver. Starting from a stop or controlling a fast upshift requires coordination of the clutch, gas pedal, and shifter that automatic transmissions don't provide.
Better Acceleration & Power Delivery
While the Mustang GT came with a capable 4.6L V8 engine, the T-5 manual transmission optimized its power delivery. Acceleration times were quicker with the manual versus with the available automatic.
By choosing gears appropriately, the engine could be kept in its peak torque rpm range. This allowed drivers to accelerate harder and access more of the engine's 215 horsepower.
Increased Fuel Efficiency
Surprisingly, the 5-speed manual Mustang GT could achieve slightly better EPA estimated fuel economy over the 4-speed automatic version. Estimates were 17 mpg city/25 mpg highway for the manual compared to 16 mpg/23 mpg for the automatic.
The transmission's overdrive 5th gear helped contribute to this efficiency when cruising at highway speeds. Allowing lower engine rpm saves fuel while maintaining cruising speed.
Maintenance Tips for the Mustang GT 5-Speed
To keep the T-5 transmission in peak operating condition in the 1998 Ford Mustang GT, here are some recommended maintenance tips:
Check Transmission Fluid Regularly
Be sure to check the transmission fluid level every couple of months to ensure it remains full. Low fluid can cause accelerated wear inside the transmission or even component failure.
Change Transmission Fluid Per Recommended Intervals
Change the T-5's lubricant every 30,000 miles as specified by Ford. This will help the synchros, bearings, gears and other components last. Always use the manufacturer's recommended fluid as well.
Listen for Gear Grinding
If you hear grinding while shifting gears in the Mustang GT, have the transmission inspected right away. Gear grinding indicates potential wear like damaged synchronizers that should be addressed.
Pay Attention to Clutch Operation
Because the clutch endures considerable wear through usage, pay attention to how it operates. If the clutch starts to slip under acceleration, doesn't engage smoothly, or chatter occurs, the clutch may need replacement.
Finding a 1998 Ford Mustang GT 5-Speed Today
Even decades later after its production run ended, the 1998 Ford Mustang GT with manual transmission remains a popular choice among sports car enthusiasts. Its performance, styling and rear-wheel drive dynamics help it maintain strong interest and following.
Owners who may want to sell often list their Mustang GTs for sale on websites like Craigslist, eBay Motors, specialty Mustang enthusiast forums or Facebook Marketplace. Local classified newspaper ads are another place to find 1998 GTs with the 5-speed manual still available.
Before purchase, inspection from a trusted mechanic is highly recommended to assess the car's overall mechanical condition. This is especially important with higher mileage examples to identify items that may need repair or maintenance.
For Mustang fans seeking an exhilarating, uniquely raw driving experience with plenty of power, the 1998 GT with 5-speed transmission delivers an engaging option. Supporting continued maintenance for the transmission and other components can help it remain on the road for years to come.
FAQs
What are the gear ratios of the T-5 5-speed manual transmission?
The T-5 manual transmission gear ratios are:
- 1st gear: 2.95:1
- 2nd gear: 1.94:1
- 3rd gear: 1.34:1
- 4th gear: 1.00:1
- 5th gear: 0.63:1
- Reverse: 2.90:1
How much horsepower and torque does the 1998 Mustang GT produce?
The 1998 Ford Mustang GT was powered by a 4.6L V8 engine producing 215 horsepower at 4,400 rpm and 285 lb-ft of torque at 3,500 rpm.
What type of oil should be used in the T-5 manual transmission?
Ford recommends using MERCON V ATF fluid in the 1998 Mustang GT's T-5 5-speed manual transmission.
What were some key maintenance items for the 5-speed manual transmission?
Important maintenance included regularly checking the fluid level, changing the fluid every 30,000 miles, listening for gear grinding, and paying attention to clutch operation and signs of wear.
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