Acquired the above vehicle from local craigslist with some oil loss externally from the driver side HG area, intended to spend a few weekends learning to throw in new gaskets and use for my winter driver.
When driving on the freeway there was some wheel shake that felt to me like an off balance wheel. No problem, I thought. Then I noticed the shifter was also shaking side to side pretty hard over ~55 mph, as in it will move my hand if I try to keep it still. On closer attention I noticed there is still some side to side pull at lower speeds, unlike the wheel shake which resolves.
All I can find from web search on the shifter shake is that it may just be more apparent than I'm used to because of the direct linkage to the gearbox vs. the cable linkage I'm used to in my FWD corolla, but the shaking seems a little too extreme to me to be normal.
I went ahead and pulled the engine and heads and worked on that while trying to research the above issue. Then the other day I drained the gearbox and much to my dismay found all these little black chunks in the oil. Yuck. Additionally there was about a teaspoon worth of "magnetic goop" I was able to wipe from the drain plug magnet. The black chunks were very weakly magnetic, but maybe just from the other particles in the oil. They were hard, but didn't seem like metal fragments as I was able to press my fingernail through them with firm pressure. Gasket material maybe? I'll get some pictures up soon as I can.
As for the shaking, anyone heard of this before?
-All the U joints in the propshaft seem tight with no give (by hand) except the front joint from which I can elicit a barely detectable "click" with just the right twist. I'd rather this be the problem than the trans, but don't want to buy a new one just to test this theory.
-CV shafts and boots are in good shape and low speed driving, turning, hard accelerating are all good with no clicks or thumps.
-Despite the shake when in gear, all up and down shifts were smooth through all the gears.
Sorry for the long post, wanted to get descriptions up here. Pics soon.