Anyone know the difference between the #4RDB & #5RDB? Is One for the 2004 and one for the 2005 specific?
This is for the GM42CW , GM # 24224256.

Did GM make a dual pattern flexplate?

What do you recommend withe the 245, the NA flex or the dual pattern one.

Any recomendations on a reman TC like Pro-King, DACCO ect.