So I was driving home from lunch yesterday when the truck suddenly started shaking and then reved like it had slipped out of gear. Well I had to stop on the road and tried restarting the truck and nothing, the starter just spins. From what I can tell I broke the flexplate. Now I am a little confused as to what flexplate I need. I need a 50oz for my 96 correct? Do I need 157 or 164 teeth as both are coming up for a 302? I am also going to change my rear main seal, is it a 1 or 2 piece seal? I'm also considering ordering a shift kit to install while the trans is out anyway. Anybody used one of the transgo or B&M kits?

 

It would help if we knew the year of the truck.. I will assume it a 96. If that is true and engine is the original then main seal will be one piece. Looks like 164 tooth.

 

Always good to take out the flexplate and count the teeth.

 

Remember to retorgue those 1" 10mm x 1.0 flex plate (fine pitch) bolts to the manufacturer specs -- funny things happen if you don't.