flexplate ???
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Senior User
Joined: Dec 2003
Posts: 194
Likes: 0
From: new jersey
flexplate ???
Hello!
I just put a used Automatic Trans in my 86 f150 2wd / 351w /c6 trans
and found that the flexplate had some missing teeth! so I replaced it with another, the flexplate I replaced had a piece of metal welded to it, but the one I put in, did'nt have anything welded to it. Could that be some sort of balancing thing for the flexplate??? or maybe I put the wrong one in, like a " flywheel??? " for a manual trans.
My question is: could the flexplate cause the truck to have a rumbling feeling? like as if it where out of balence? (or) could it be a bad torque converter?
The trans shifts fine through all gears. it seems to stop rumbling at about 25mph.
Any suggestions would be very helpful.
Thanks Al
I just put a used Automatic Trans in my 86 f150 2wd / 351w /c6 trans
and found that the flexplate had some missing teeth! so I replaced it with another, the flexplate I replaced had a piece of metal welded to it, but the one I put in, did'nt have anything welded to it. Could that be some sort of balancing thing for the flexplate??? or maybe I put the wrong one in, like a " flywheel??? " for a manual trans.
My question is: could the flexplate cause the truck to have a rumbling feeling? like as if it where out of balence? (or) could it be a bad torque converter?
The trans shifts fine through all gears. it seems to stop rumbling at about 25mph.
Any suggestions would be very helpful.
Thanks Al
Cargo Master
Joined: Oct 2003
Posts: 2,833
Likes: 4
From: Jefferson, Iowa
I would suspect the flexplate, it probably came off of a motor with external balencing, and your did not have that. I would just go buy a new flexplate, they are not that much, i do it each time i rebuild a motor, because it is hard once the motor is installed.
Posting Guru
Joined: Jun 2000
Posts: 1,229
Likes: 3
If the flexplate you installed had no balance weights it is for a 300 which is internally balanced. You need flexplate with 28oz imbalance from 81-earlier 302 or any 351w. 82-later 302 have 50oz imbalance. Vibrations caused from wrong flexplate will eventually destroy your engine.
