Hey guys looking at a TCI Flexplate Part #399753.. I have an 05 LQ4 mated to a 4l80e of the same year. Plan on a Yank Torque Converter and was wondering if the Flexplate will fit my build. Some say yes and some no. Pretty sure its all in the TQ Converter bolt pattern, I'm confused! I will call both Yank and TCI tomorrow, but thought I would ask the question in the meantime! Thank you!

 

Looks like I need a Yank or any TQ built for the 4l60e pattern and I will be okay, both 6 lug just different spacing.... Anyone have anything to add o this?

 

just get a stock flexplate???

 

Have the stocker, turbo is in my future so just wanted the added insurance. The TCI was at a good price just seeing if I can work this one into my build.

 

The TCI flexplate you mentioned has the LS and LT/350 bolt pattern. So you will need a special converter. Ironically, we build more 4L80 with the LS bolt pattern than with the 4L80 bolt pattern. You could get the TCI #399754, this has the 6 lug 4L80 bolt pattern. That will take a traditional 4L80 converter, but you will need to use the pilot extension on the converter pilot to engage in the crank. We have a couple options for you if interested in a Circle D, for both the converter and flexplate. Any more questions let me know....

Chris

 

TCI Flexplate Part #399753 where is this p/n from summit jegs?

 

yeah if its off jegs it will work...