Oakridge 52

Hi,

I just purchased a 1996 Lexus SC400 with 204000 miles. The problem is that there is a vibration in the car both at park and in drive that varies with RPM. Idles very smooth, no check engine light, very good power (but not tire squeeling power). When I rev it with the gas pedal, there is a distinct shudder inside the car both in park and in drive. It comes and goes at various RPM. If I rev it from the engine compartment, I can feel no trace of it in the motor, so I assume it isn't the motor doing it. Here's a list of things I have done to the car:

Changed Spark plug wires, distributor caps and rotors. . .b/c there was a miss in cyl. 5 and 7

Changed Brake pads (front)

Have not changed spark plugs yet, but plan to do so with next pay check (wires, caps, rotors, and brakes set me back several hundred dollars even though I did it all myself)

What could be causing this? My first instinct tells me it could be the torque converter, but I'm not sure. Also, the car seems to cruse at somewhat high RPM. at 55 its at 2000 rpm and at 75 its at 2700 to 2750 rpm. This also leads me to believe that it might be the torque converter as my grand prix v6 does 75 around 2400 to 2500 rpm. Not familiar with this type of car, though. It may just be normal; I don't know. Any help on this would be appreciated! Thanks!

PS: sorry so long winded, I just wanted to be thorough. Thanks!

Does anyone know where I can buy a use or ? 3rd brake light for a 97' SC400? This is a LED strip light. Looking inside the light, I can see

a burn out fuse or some kind of component. Voltages are fine to the connector.

Thanks,

Pete