Hey Guys,

I have a bit of a vibration in a new build and I'm just eliminating possible factors.... so I have a quick question...

I'm running a 66 Hemi block in a '70 cuda with a new ram 1593 8 bolt/143 tooth flywheel and a ram 88504 11 inch clutch, 18 spline...

That combo should be ok, correct ?

Motor ran good and tight on the break in stand with the current harmonic and flywheel installed... now on the maiden voyage she's not happy. Slippage low rpm in 1st, then she grabs after winding out a bit.. and a good vibration all around, its there with the clutch depressed also...

I have a feeling I'll find the source between crank and trans but, want to eliminate the possibility that i'm running the wrong flywheel/clutch before I start searching.