RTS speedometer gear housings are designed to replace the OEM gear housing in your automatic transmission. They install easily into the removable section of the rear tailhousing of the transmission. The RTS speedometer gear housings are available in different tooth combinations and are identified by their color. Upgrading to larger diameter tires? Changing ring and pinion gear ratios? Make sure you use one of these RTS speedometer gear housings to keep track of your speed accurately.
Fits 700R4 and Buick, Olds and Pontiac TH350. Will not fit Chevrolet TH350 or any TH400 applications
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