Coenut Posted July 18, 2017 Share Posted July 18, 2017 I'm need to disassemble the speedo assembly on the transmission. I would think that a small wrench on the tube and a big wrench on the nut. Can't break em. Big wrench on the nut spins the whole assembly and the speedo adapter his case. Any thoughts. Quote Link to comment https://www.bigmacktrucks.com/topic/50505-how-does-this-come-apart/ Share on other sites More sharing options...
Freightrain Posted July 18, 2017 Share Posted July 18, 2017 (edited) What's the hose clamp for? Typically there is a threaded sleeve at the bottom(below the hose clamp), knurled so you can grab it with your fingers and unscrew it from the transmission(which should have male threads like a garden hose on it). Then lift the whole thing up. It should look just like the end you removed the cable from. That adapter is just to adjust speedometer reading. Either speeds up or slows it down to match gear ratio/tire size. Edited July 18, 2017 by Freightrain Quote Larry 1959 B61 Liv'n Large...................... Charter member of the "MACK PACK" Link to comment https://www.bigmacktrucks.com/topic/50505-how-does-this-come-apart/#findComment-375199 Share on other sites More sharing options...
41chevy Posted July 18, 2017 Share Posted July 18, 2017 Un screw the speedo finger nut on the trans where the cable would normally go, the adapter comes out in one piece tub and angle head. Quote "OPERTUNITY IS MISSED BY MOST PEOPLE BECAUSE IT IS DRESSED IN OVERALLS AND LOOKS LIKE WORK" Thomas Edison “Life’s journey is not to arrive at the grave safely, in a well preserved body, but rather to skid in sideways, totally worn out, shouting ‘Holy shit, what a ride!’” P.T.CHESHIRE Link to comment https://www.bigmacktrucks.com/topic/50505-how-does-this-come-apart/#findComment-375204 Share on other sites More sharing options...
Coenut Posted July 18, 2017 Author Share Posted July 18, 2017 No finger nut solid shaft from large nut to yoke housing. Quote Link to comment https://www.bigmacktrucks.com/topic/50505-how-does-this-come-apart/#findComment-375225 Share on other sites More sharing options...
70mackMB Posted July 19, 2017 Share Posted July 19, 2017 The solid shaft should break loose at the yoke housing. There will be a small keyed shaft inside of it (pencil shaft?) The one on the MB is longer to reach over the transmission. We had to spend some time and speak to it often to get it to come loose. Then it was into the vice to get the other end off...........Hippy Quote Link to comment https://www.bigmacktrucks.com/topic/50505-how-does-this-come-apart/#findComment-375237 Share on other sites More sharing options...
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