Notices
GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

4l80e upgraded flexplate

Thread Tools
 
Search this Thread
 
Old 07-19-2017, 12:04 AM
  #1  
Launching!
Thread Starter
 
SDjeff619's Avatar
 
Join Date: Sep 2013
Location: San Diego
Posts: 223
Received 11 Likes on 10 Posts
Default 4l80e upgraded flexplate

I believe I ended up with a 99-2000 "long crank" in my short block. I'm swapping to an 80e and wondering what flexplates have any of you used that had the early 6.0 long crank? P/N, spacer used or pilot extender sleeve? I intended on going with the tci flexplate but not sure between the 399753 and 399754.
Old 07-19-2017, 10:10 AM
  #2  
TECH Senior Member
iTrader: (87)
 
Join Date: Aug 2007
Location: Turnin' Wrenches Infractions: 005
Posts: 19,145
Likes: 0
Received 8 Likes on 8 Posts
Default

ATP Z-270, remove the inner spacer for the long crank model trucks.

Name:  20170710_203021_zpsjavwwynp.jpeg
Views: 304
Size:  1.09 MB

the 4l80e use the TCI 399754 flexplate but it wont fit long crank models because it is the same height as a dished plate, you need a flat plate. See the height listed for all these? Those arent flat.

Name:  ls-flexplate.jpg
Views: 269
Size:  109.3 KB
Old 07-20-2017, 12:14 PM
  #3  
Launching!
Thread Starter
 
SDjeff619's Avatar
 
Join Date: Sep 2013
Location: San Diego
Posts: 223
Received 11 Likes on 10 Posts
Default

Thanks, I talked to Brian at Circle D and got some good info. Then found that JW in Florida makes a flat flex plate that works with the long crank. It's on order.



All times are GMT -5. The time now is 08:02 AM.