1984 s10 2.8 manual trans. flywheel causes engine to vibrate

is the flywheel worn out or just the ring gear, (starter gear)
first remove the trans mission then unbolt the flywheel, and replace
if only replacing the starter ring gear, use a soft hammer and bump it as you rotate the flywheel until it comes off, if the back side looks good heat it in the oven to 350 degrees and with gloves on run out and put it on the flywheel, it will go on easily, just hold it all the way on against the edge it rests on and turn it about 1/3 turn and hold for about 15 seconds and that's it, it will not come off unless you beat it off again

if you have access to a hoist/lift, you simply can unbolt the trans and slide it back enough to gain access to the flywheel bolts

possibly the slave cylinder

Hello: Put in 5 qts then drive car and get trans to operating temp then with trans in park, engine idling check fluid level again. It may need more. Have car setting level.

no trans fluid standard manual shift uses 90 wgt gear oil on side of trans unscrew plug if oil runs out full if not put some in it

You can see it from the under side of the engine. Its in the side of the block.

did you put the shims back in the starter?

Your 84 wiring harness is for the TCC ( transmission converter control) system.
On the left side of the carburetor (driver side) you should have 2 cables, one for the accelerator and the 2nd for the TV (throttle valve) control. You will need to adjust the cable for correct shift points. Under normal circumstances you will have 7 to 10 mm's extending beyond the cable adjuster block.
Should take care of the issue for you.
Let me know.
Regards,

Yes that switch will work. So will a lot of other parts and gaskets. You have to make sure the engine size is the same. Parts are compatible with the same engine size. Have a drain pan and new oil ready in case the oil does come flowing out.
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Yes obviously they will need to lift the motor because the flywheel is smack-dab in between the torque converte and motor, could actually do it yourself with the right tools ( Engine hoist, air compressor , air tools, and sockets, and or course torque wrenches to properly mount the flywheel back to manufacturer specs) but I do believe 3 Grand is way higher then your average shop. Look for shops with Mexicans they have O.K. service for a good price. Reasonable price is in between $700 and $1200 GOOD LUCK!!