Supertrucker Posted November 14, 2009 Share Posted November 14, 2009 Hi...I've got a 2005 Granite with the mack 10 speed that has started to grind when making the range shift into 5th. It does seem to do this only when the transmission is cold, once it warms up it shifts fine. We bought this truck with approximately 130,000 miles, it now has 160,000 and about a year later the trans started to leak around the top cover. Last winter we pulled both top covers and replaced the gaskets and torqued all the bolts. This summer the front top cover began to leak again and due to time constraints we have just been checking the oil level once a week until we get time this winter, not the thing to do but it's alot of work. Anyway, tonight I checked the level through the large plug on the side and it's usually a little low but this time I had oil running out and didn't have to add anything. Any ideas? Quote Mack- Built Tough to Ride Rough!Driver and operator for Bertils Gravel and Excavation Link to comment Share on other sites More sharing options...
partzmaster Posted November 14, 2009 Share Posted November 14, 2009 It sounds like your synchronizer is the area you should look at! Quote Link to comment Share on other sites More sharing options...
Supertrucker Posted November 15, 2009 Author Share Posted November 15, 2009 Hmm..will have to check that out. Quote Mack- Built Tough to Ride Rough!Driver and operator for Bertils Gravel and Excavation Link to comment Share on other sites More sharing options...
fjh Posted November 15, 2009 Share Posted November 15, 2009 Hmm..will have to check that out.Check the yoke bolt for tightness Quote Link to comment Share on other sites More sharing options...
Supertrucker Posted November 15, 2009 Author Share Posted November 15, 2009 Thanks..I will do that as well. Quote Mack- Built Tough to Ride Rough!Driver and operator for Bertils Gravel and Excavation Link to comment Share on other sites More sharing options...
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