Vibrations and noises are hard to pinpoint. Even stuff like wrong driveline angles can transmit vibrations to the transmission. Heck one time I had a buddy's father-in-law ask me to help diagnose a transmission issue and I ended up finding it was a crankshaft bearing issue.
Clutch or transmission issue?
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by superhill56, Apr 22, 2020.
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Wow! I did that last month. Replaced a turbo and ended up being exhaust manifold gaskets.
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I hope this ain’t something I keep having to throw money at.
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Update. It doesn’t make the noise in 4th either
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I would rule out loose/ worn linkage, and watch for broken springs, laying inside the inspection cover. And keep running it.
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Was transmission. I just lost all my gears except 4 and 9
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I was trying to make it home
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Call it a hunch, but I'm guessing you broke the input drive gear (the gear the input shaft splines in to). That would explain 4th/9th only since those are the only gear positions the main box doesn't transmit power to the countershafts.
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