I just took out my week 302 out of my 87 bronco and put a fresh 351w in.But I have one problem I have A vibration at about 3000rpm.A budy of mine told me that I need to put A flyweel from A 351 and not A 302 is this true and if so do I need to get one for the year it.this is A standard trans.

 

The post-81 302 flywheel won't work. You need a flywheel for the earlier 302 or a 351.

 

Which flywheel are you running now? The 87 302 flywheel won't work on the 351. Quantrex is right, you need a 351 or early 302 flywheel.

 

Well at least I can do this in my sleep after all I did it 3 times already.Ill try the 351w flywheel and see what happens.Thanks