1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

size of oring for speedo-transmission drive gear

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Old 09-03-09, 03:37 PM
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size of oring for speedo-transmission drive gear

Im replacing seals on my transmission during a clutch job and got the speedometer drive gear seal but didnt get the speedo drive gear oring. I have a huge box of orings so Im sure I have one that would fit but I dont know what size it is or really even where it goes to just find one that fits. Last thing I need to replace before putting the trans back in!!!

part # is 17-4430-1011 on page below...
http://www.mazdatrix.com/g4.htm
Old 09-03-09, 04:32 PM
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Remove the drive gear from the tranny held in place with 1 bolt where the speedo cable attaches. I.D. of the o-ring is just under 1", thickness approximately 1/8". If you unscrewed the speedo cable from the tranny, then the drive gear is still in the tranny.
Old 09-03-09, 04:36 PM
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One of the 2 people I hoped would respond...excellent. I removed the speedo cable so that explains why I couldnt figure it out. I was having to refill my transmission every 200 miles or so I was losing so much fluid from there!

thanks!
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