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4L80E Mechanical Speedometer Tail Housing and Speedometer Gears, #SW44
#SW44. The SW44 kit will give your 4L80E transmission a factory manual speedometer hook up that uses all new GM parts and does not interfere with any stock electrical configurations. The tail housing is the same length as most stock tail housings which means you can use your existing drive shaft.
The SW44 kit includes new tail housing, drive gear, sleeve and driven gear, sleeve retainer, and bolt. Tail housing bolts can be added if needed. This is a simple 30-minute bolt on installation. When ordering, you must provide rear axle gear ratio and tire diameter. This tail housing is 5 1/2 inches long and requires an output shaft with a 1.410″ to 1.412″ place for the speedometer drive gear. If your shaft is larger than this we can machine the speedometer drive gear to fit your shaft. ((If your shaft has splines where the speedometer gear goes you will need a new output shaft.))