1985 Chevy Blazer flywheel

to help cut down on confusion, you have a flexplate, not a flywheel.


next, could you explain where the cracks are?
are they starting at the center hole and radiating out? or are they starting at the bolt holes?

they start at the bolt holes - this time though it made a crack that went all around the bolts in a circle - that section is completely separated from the flexplate

I've never seen a car eat two flexplates before.

the replacements, does the center hole fit snugly on the end of the crankshaft?

yeah - i've seemed to stump everyone i know with this problem - it sits perfectly on the shaft, even used new bolts this last time

when you have the nose of the torque converter bottomed out in the crank shaft, and then you tighten up the bolts, is the flexplate bowing? or is it still flat...

I'm wanting to make sure you are not putting it on backwards. or that it's not a problem with the new torque converter after you had the trans rebuilt.

the flexplate is not bowing - it's flat - - and its not backwards, its facing the right direction - - could it be the starter needs to be shimmed more?

you can try it, but don't think it would matter.
this is my thinking process. the torque conver is bolted closer to the ring gear.
and the snout is supported in the back of the crank shaft.

so the converter would keep any pressure from the starter from pushing at the center.

and normally if you have the starter too close to the ring gear, it makes one hell of a noise.

I see you have a ballanced flex plate, but i think you would have known if you had it on wrong.

the only thing i can speculate is that you got the bolts too tight.

well - i put on #3 and so far so good - i used a different torque wrench this time to make sure i wasnt putting too much torque - hope it works - thx for you help