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1989 Mustang GT Page

Total Mustangs produced: 209,769
Total GT’s produced: 59,701 1989 Mustang GT

(For more production number details, go to our Production Numbers Summary page.)

225 HP @ 4000 RPM
300 ft/lb @ 3000 RPM

The 1989 Mustang GT galloped into the new year with virtually no revisions yet still remained extremely popular. Production decreased slightly by 8,767 units as 5.0L fans discovered the cheaper (and lighter) 5.0L LX “Sport” model which offered basically the same mechanical and interior package as the GT without the GT’s external appearance items. Of course, the powerful and popular sequential electronic fuel injection 5.0L HO engine continued with its 60mm throttle body, tuned length aluminum intake plenum, 19 lb-hr injectors, E7TE truck heads, roller lifter cam, remote low-restriction air cleaner, and EEC-IV electronics system. Also unchanged were the GT’s stainless steel exhausts teamed up with stainless steel tubular headers, 1.3 inch front anti-sway bar, 0.83 inch rear anti-sway bar, and 10.84-inch front brakes.

One major mechanical revision did happen in 1989 - 5.0Ls in all 50 states were switched over to mass airflow sensor metering which replaced the speed density system found on all GT’s in 1988 (except those sold in California which had already switched). Although in stock form the speed density 5.0Ls have proven to be a bit faster than the mass airflow sensor cars, GT enthusiasts planning to modify their GT’s were glad to have the mass air system which allows extensive performance modifications to be made while still retaining driveability. Speed density 5.0Ls are not nearly as adaptable to modification as their mass air-equipped counterparts. 1989 GT intake(This change actually reduced output by two or three power because of the more restrictive air inlet tract, but was not reflected in the total horsepower rating). In addition, a small camshaft profile change to reduce valvetrain noise actually reduced 5.0L output by three horsepower in 1989 (this also was not reflected in the total horsepower rating).

Of course, the standard GT handling package was carried over again from 1988 including progressive rate springs, sway bars, gas pressurized struts with rear quadra-shocks and 15x7 inch wheels with uni-directional Goodyear Gatorbacks.

Externally, the GT (available in both hatchback and convertible models) remained the same, sporting flush-fitting headlamps, aerodynamic nose, rear wing, round fog lights, louvered taillights, flush rear quarter window, ground effects package and 15x7 inch “Turbine” wheels. Exterior paint combinations included Black, Dark Grey Metallic, Light Grey, Bright Red, Cabernet Red, Medium Shadow Blue Metallic, Bright Regatta Blue Metallic, Deep Shadow Blue Metallic and Oxford White. As in 1987 and 1988, Titanium lower accent paint treatment was also available on the GT at no cost along with a red or blue bodyside molding insert stripe.

1989 GT interiorThe big interior news for 1989 was a new 140 mph speedometer now standard on all 5.0L models replacing the wimpy 85 mph speedo in earlier models (the 140 mph speedo was introduced partway through the 1989 model year after the existing stock of 85 mph speedos were used up). Otherwise, the ergonomic GT design continued with dash, instrument panel, climate control knobs, seats, door trim and console from ‘87 and ‘88. Standard interior features remained the same from 1987: tilt wheel, 7,000 rpm tach, swiveling map light, interval wipers, reminder lights for low fuel, low washer fluid, low coolant and “check oil”, center console, articulated sports seats, driver’s foot rest/ support and brake and accelerator pedals positioned to allow heel-and -toe downshifting. Carryover interior trim colors were: Scarlet Red, Medium Grey and Beige. Good looking optional leather articulated sport seats featuring white and red, white and blue, or white and grey leather (convertibles only) remained on the 1989 option list along with power locks and windows, speed control, dual remote mirrors, air conditioning, sunroof, rear defrost and electronic AM/FM stereo with cassette. 1989 GT dashAfter being optional equipment on late model GTs from 1982-1988, T-tops were no longer on the options list in 1989.

Of course, any true Mustang enthusiast knows that April 1989 marked the 25th anniversary of the Mustang. As a token commemoration of the Mustang’s 25th anniversary, Ford placed a small running horse emblem engraved with the words “25 Years” on the passenger side dash of all Mustangs manufactured from mid-April 1989 to mid-April 1990. This, of course, included Mustangs from both model years 1989 and 1990. Mustangs sold during this time period also had the same running horse emblem pictured in the background of the window sticker. After the end of the 1990 model year, the running horse emblem remained on the dash without the “25 Years” engraving at the bottom.

Although the GT remained virtually unchanged since its facelift in 1987, the car’s popularity remained strong as ever. As more and more car enthusiasts were bitten by 5.0L fever, the aftermarket for these cars continued to expand making the late model GT a favorite of backyard racers everywhere.

Sources: All photos - Ford Mustang brochures.



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Miscellaneous Data - 1989 GT

Base price - 1989 Mustang GT 3-door sedan (61B): $13,272.00
Base price - 1989 Mustang GT 2-door convertible (66B): $17,512.00

Note: These prices fluctuated during the model year.

This area is still under construction. Please stop back in the future for a listing of 1989 GT options and prices as well as other data.


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Last update: 3/1/99