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help lq4/4l80 swap converter help with sfi flexplate

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Old 07-04-2010, 02:03 PM
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Default help lq4/4l80 swap converter help with sfi flexplate

i put a 03 lq4 and a 04 4l80 in my 92 gmc typhoon .I just put trans in and the converter is like half inch away from flexplate it says in directions whould have no more than 3/16 has any one else had this problem. the motor is a 03 so it does have the spacer on the crank and i reused it on new sfi flewplate . Please help. who sells the spacers
Old 07-04-2010, 02:51 PM
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You should be ok being that the lq4 already had a 4l80e behind it already. as long as the spacer is there you should be good. Im thinking the converter is just back in the trans as far as it will go. if thats the case there will deff be more than 3/16 between the converter and the plate. I think you are still good when the converter is pulled up against the flexplate though.

Im assuming you dont have it pulled all the way forward when its a 1/2 in away from the flexplate correct?
Old 07-04-2010, 11:23 PM
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yes i didnt pull it toward flexplate . not sure if any one has shimmed there's
o ya its a yank 3600 triple disc

Last edited by s10pro; 07-04-2010 at 11:30 PM.
Old 07-04-2010, 11:35 PM
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Moving to Automatic.
Old 07-05-2010, 10:54 AM
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without pulling converter towards flexplate, i have just about 1/2 inch away from each other. so if i pull it out like it says, i would need about a 3/8 thick washer.
Attached Thumbnails help lq4/4l80 swap converter help with sfi flexplate-converter.jpg  

Last edited by s10pro; 07-05-2010 at 11:04 AM.
Old 07-05-2010, 04:51 PM
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I had heard that the spacer needs to be on the crank side when using a flat flex plate. That looks like the case here.
Old 07-05-2010, 07:20 PM
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the spacer is on the crank side
Old 07-06-2010, 11:51 PM
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sory to hijack but my friend is putting a th350 up to a ls3, he has the flat flex plate and when he puts the spacer on the crank side the starter wont clear the flex plate ( as in it hits the nose). he is using a truck 6.0 starter is there something we are missing or what




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