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Old 08-16-2001, 12:54 PM   #1 (permalink)
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Question Flexplate Question - Which Direction?

Which side of a flexplate faces the block and which side faces the tranny? This is in a Chevy 350 if it makes any difference.

There are nubs on the flexplate that the torque converter bolts to. The nubs can either provide a recessed area for the bolt heads to increase clearancebetween the bolt and the block, or they can provide a recessed area for the nubs on the torque converter to sit in.

There are no marking on my flex plate and it replaced a special AA flexplate which might be different anyway.

Currently I mounted the flexplate with the nubs pointing toward the Torque Converter provided a recessed area for the bolt heads. The starter teeth are approx 1/2" away from the flex plate. Does this sound correct?
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Old 08-16-2001, 01:02 PM   #2 (permalink)
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Quote:
Originally posted by MarkF:
<STRONG>Which side of a flexplate faces the block and which side faces the tranny? This is in a Chevy 350 if it makes any difference.

There are nubs on the flexplate that the torque converter bolts to. The nubs can either provide a recessed area for the bolt heads to increase clearancebetween the bolt and the block, or they can provide a recessed area for the nubs on the torque converter to sit in.

There are no marking on my flex plate and it replaced a special AA flexplate which might be different anyway.

Currently I mounted the flexplate with the nubs pointing toward the Torque Converter provided a recessed area for the bolt heads. The starter teeth are approx 1/2" away from the flex plate. Does this sound correct?</STRONG>
That's the way they normally mount - bolt head in the recess. Most GM flexplates/flywheels won't mount backwards anyway because the holes for the crank are not symetricallyt spaced.
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Old 08-16-2001, 04:05 PM   #3 (permalink)
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Quote:
Originally posted by old jeep:
<STRONG>the holes for the crank are not symetricallyt spaced.</STRONG>
I just luv this technical talk
<IMG SRC="smilies/cool.gif" border="0">
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Old 08-16-2001, 08:33 PM   #4 (permalink)
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Originally posted by 1BDYJ:
<STRONG>
Quote:
Originally posted by old jeep:
[qb]the holes for the crank are not symetricallyt spaced.</STRONG>
I just luv this technical talk
<IMG SRC="smilies/cool.gif" border="0">[/QB]
Ok, for those of you who need smaller, correctly spelled words "evenly spaced" <IMG SRC="smilies/wink.gif" border="0">
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Old 08-19-2001, 12:38 AM   #5 (permalink)
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You sure??
I wasted a new $1200 turbo350 trans by putting the flex plate on backwards....and it pushed the torque converter into the trans pump and fucked it all up (techly speaking <IMG SRC="smilies/biggrin.gif" border="0"> ) so the trans only lasted like 10,000 miles.

I thought it mounts so the converter is closest to the motor...

I "could" be wrong (don't tell my wife) as it's been 10 years and many brain cells ago <IMG SRC="smilies/rolleyes.gif" border="0">
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