speedometer gear replacement

How you replace it wasn't addressed so here goes. Unscrew the speedo cable from the adapter. Then it takes a 1/2" wrench or socket to remove the retainer holding the adapter in place. BTW: You should spray it down with brake cleaner or carb. cleaner before starting so you don't get anything in the trans. The adapter is clocked a certain way depending what speedo pinion is used. You'll see numbers on it with a line to align on the ext. housing according to what gear your using. I always install it using the highest number setting first then turn it to the correct location for your speedo gear. Install the hold down and screw the cable on and your done.