Would it be worthwhile to run some cheap gear oil thru a manual transmission (500-1000 miles) before putting in the good stuff to flush out as much particles as possible?


A magnetic plug will catch iron, but not brass from synchros.


And does anybody know how big these particles are anyway ? (microns)

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

Drain it and refill it with a good GL4 gear oil. GL5 gear oil will damage the brass inside the gearbox (which is what syncros are made of)

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This is my hooptie, there are many like it but this one is mine. With out my hooptie I am walking and without me my hooptie is broken down.
1980 dodge d150, sl6, 4sp od, air