From what I understnad it is the height of the driveshaft center support besring that will cause the chudder. You can raise or lower the shaft by adding in washers to the mounting bolts ...

There is info on this elsewhere in the FAQ.

As for your dash lights, they are fairly simple to replace. Just drop the lower cover to the dash, and reach your hand up there. The bulb assembiles will remove with a 1/2 twist or so.

The heater lamp is to the left of the fan knob, just need to carefully pry off the cover and there you will find the bulbs.

The amp in my car was under the drivers side.

I have an amp for sale if you need one. I pulled out the factory system and installed a high-zoot system. :)

STefan