Her69fastback 3 Report post Posted February 15, 2018 I’m putting a C4 in the mustang. It has a 3 speed in it now. Do I need a 157 teeth flexplate? Thanks for the help Quote Share this post Link to post Share on other sites
Vicfreg 773 Report post Posted February 16, 2018 Depends on the engine you are using. Make sure you get the correct "balance" weight flex plate. Earlier model engines are 28oz, later models are 50oz. Quote Share this post Link to post Share on other sites
Her69fastback 3 Report post Posted February 18, 2018 It’s a 302. Thanks for the help Quote Share this post Link to post Share on other sites