240D W-115 grinds going into 4th
I have taken my 1975 240D 4 speed out on a few test drives, so far both the clutch and trans work great in all ways but one. Going into fourth at high RPM's it grinds. I can shift it very slowly, like third to neutral wait a count of 2 then neutral to fourth and it won't grind.
I have pressure breed the clutch system from the slave up several times and feel pretty confident there isn't any air in the lines.
The shift rods were disconnected when I swapped engines so I guess they could be out of adjustment but it solidly goes into 4th.
I do not know the age of the slave or master cylinders, I could replace / rebuild them.
Would bushing present this problem?
Any ideas would be appreciated. Thanks
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1972 280SE 4.5
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