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A Toploader transmission is a manually shifted gearbox design built in three-speed and four-speed configurations, introduced in 1963 by the Ford Motor Company to replace the BorgWarner T-10. It was used in most Fords and Mercurys from 1964 until 1973, as well as in some foreign models, and is officially designated the 3.03 three speed or Ford ...
Muncie SM420 transmission — 4-speed manual transmission used up to 1967. Very similar to the Muncie SM465 except for small changes to its gear ratios and the location of its reverse gear. Muncie SM465 — 4-speed longitudinal manual transmission used in 1968-1991 Chevrolet 1/2-ton, 3/4-ton, and 1-ton trucks.
The "MN4" 4T40E is able to handle vehicles up to 4000 lb (1814 kg) GVWR. The final drive ratio can vary depending on the car's curb weight and engine power output. 3.91, 3.63, 3.29, 3.05, 3.69, and 3.42 are all of the available ratios used in the 4T40 (and 4T45) transmission; Made possible by using combinations selected from 3 different sprocket combinations (32/38, 35/35, 33/37) and 2 ...
The police package (9C1) B-body cars featured a First Gear Block Out (FGBO) Plate on the transmission housing to prevent drivetrain damage. The shift point for first to second gear is about 43 MPH (69 km/h) while second to third gear shift point is about 83 MPH (134 km/h) assuming a 3.08:1 differential and a 5,500 RPM engine speed limit.
By the early 1960s, Hurst transmission shifters and other products had become legendary in auto racing, particularly in drag racing, and among custom car makers. Many automobile enthusiasts replaced basic factory floor and column-mounted gear shifts with custom Hurst floor shifters to obtain better control of gear selection, particularly for ...
Unlike the AOD-E, Reverse, 1st, and 2nd gear ratios in the 4R70-W are numerically higher, giving the transmission a better mechanical advantage and, in turn, better take-off acceleration, better passing acceleration, slightly lower fuel consumption, and designed for better gearset strength; the 4th gear ratio in the 4R70-W is up 0.70:1 from 0.67:1.
Gear ratios are: First - 6.55:1; Second - 3.58:1; Third - 1.70:1; Fourth - 1.00:1; Reverse - 6.09:1 [1] The SM465 features dual provisions for power take-offs. The 1988-91 versions have an aluminum top with improved shift feel. The 1985 and newer versions utilize a hydraulic clutch release, replacing a mechanical linkage in older versions.
For 1991 GM introduced the 4T60-E which was a 4T60 with electronic controls, first seen on the new Buick Park Avenue.One benefit was that the cruise control was integrated into the gearbox' electronic control module, improving the ability to maintain a set speed while avoiding needless shifting, thus lowering fuel consumption and noise levels. [1]