Correct flexplate
Thread Starter
Teching In
Joined: Mar 2010
Posts: 25
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From: West palm beach
Correct flexplate Can anyone explain to me the correct flexplate to use on my setup? I keep reading conflicting information. I have a LS1 out of a 2002 f body with a dished flexplate. I read on one post that I need a new flexplate with spacer then the next post I read says I just need the spacer?? I want to retain my 2004R as it is a well built tranny and if I don't need the flexplate then I don't want to put out the cash for one. S&P says I must use both or I'll have major problems? Please help....
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
Well you need the spacer, but you don`t absolutely need the flat flexplate
You can use the dished flexplate, but you will have to oval out the holes for the converter bolts (298 MM bolt circle)
The flat 6.0l flexplate has the 300mm bolt circle like the older th400 th350, 200r4, and 700r4 used so it would be a bolt on.
You can use the dished flexplate, but you will have to oval out the holes for the converter bolts (298 MM bolt circle)
The flat 6.0l flexplate has the 300mm bolt circle like the older th400 th350, 200r4, and 700r4 used so it would be a bolt on.
Thread Starter
Teching In
Joined: Mar 2010
Posts: 25
Likes: 0
From: West palm beach
Thank you,
will I run into any issues by modifying the holes?? Or as best practice just use a flat 6.0 flex plate and call it a day. I want to do this right the first time to avoid repair in the near future.
Thanks
will I run into any issues by modifying the holes?? Or as best practice just use a flat 6.0 flex plate and call it a day. I want to do this right the first time to avoid repair in the near future.
Thanks
Joined: Sep 2004
Posts: 3,148
Likes: 12
From: Downers Grove, IL
I have heard rumors that if you modify them you can get a vibration from the torque converter not being centered.....but the torque converter centers off of the nose (hence why you need the spacer) so I don`t see how modding the holes could make the converter off center.
TECH Fanatic
Joined: Jul 2005
Posts: 1,685
Likes: 7
From: Beebe, Arkansas
Can anyone explain to me the correct flexplate to use on my setup? I keep reading conflicting information. I have a LS1 out of a 2002 f body with a dished flexplate. I read on one post that I need a new flexplate with spacer then the next post I read says I just need the spacer?? I want to retain my 2004R as it is a well built tranny and if I don't need the flexplate then I don't want to put out the cash for one. S&P says I must use both or I'll have major problems? Please help....
TECH Fanatic
Joined: Jul 2005
Posts: 1,685
Likes: 7
From: Beebe, Arkansas
You need the spacers to support the hub of the converter. It goes on after the flexplate. You will need to elongate the holes in the LS1 flex plate some to fit the earlier style flexplate pattern.
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Thread Starter
Teching In
Joined: Mar 2010
Posts: 25
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From: West palm beach
Thanks Bo,
With all the hours of searching and reading I can't believe that I didn't come across that posting before? I'm getting tons of good info from this site. Hopefully I'll find some good info on wiring the ECM (Me and electrical are not friends) and on the A/C system? Thanks for the help....
With all the hours of searching and reading I can't believe that I didn't come across that posting before? I'm getting tons of good info from this site. Hopefully I'll find some good info on wiring the ECM (Me and electrical are not friends) and on the A/C system? Thanks for the help....
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