im doing a 3800 sc swap in my 87 duke...question I want to mount solid the engine/trans to cradle so does that mean I buy poly cradle mounts . if I use rubber engine mounts do I use the solid cradle mounts? id like to mount solid it seems easier to me

The 88 cradle is a solid mount setup with rubber engine mounts.... it works pretty well for noise, vibration, etc..... so I would think solid mounts on your cradle would be the way to go...

http://rodneydickman.com/ca....php?products_id=270

As for engine mounts, it's more about your comfort level. Poly mounts would give you a lot of feedback in your 'butt-dyno', which might get tiring if you drive longer distances ( or if you are over 50.. ).

It all has to do mostly with the dog bone. If you have a stick shift you will probably will feel little difference between rubber and poly. BUT: If you use poly mounts you have to use an adjustable poly dog bone. Once the engine and trans is in it will not move and the dog bone has to be adjustable so it can be set to the correct length. If you use poly mounts and a rubber dog bone you will probably ruin the poly mounts over time or have some steel break or something.

I had poly in my 88 Mera back when it was an automatic. The only time you feel the vibrations is when you have it in drive and are at a dead stop. Once you start moving you do not feel anything. I was disappointed to loose that vibration feel when I went to a stick shift. I even went to a solid dog bone. Nothing.

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in my 87 GT I used Poly "Cradle", and rubber Engine/trans/dogbone Mounts (Mine is 4t65e-HD) no vibrations at all. I hate the vibrations "in drive at a stop" in my 85 !