OK I found the problem. My front drum steels are .070 and the steels in my rear drum are .090.

I guess this would be a simple swap, except my kit only came with 3 of the .090 and my front drum uses 5 steels.

Is it a bad idea to mix and match the different thickness steel plates until I get the desired clearances?

If I do need to order more of the .090's, should I upgrade to the kolene? Every part I got in my rebuild kit was high performance except my steels. tranny going behind 600hp 440 with 150 shot