Arthur
The judder you mention when pulling away on a corner, that usually indicates a problem at the back part of the gearbox, clutches starting to bind up. Run the question past Harvey, he has a good idea of what goes on in the box.
If you check is it putting out codes, that might eliminate a problem with the C solenoid, if no codes showing. Sounds like clutches binding in the rear transfer to me.
Regards the exhaust rattle. Two possibilities. One is the heat shields, they are above the exhaust pipe, between it and the body, in an attempt to keep too much heat soaking into the cabin. If one comes loose, it can rattle or fizzle at certain revs. If you put the car up on a ramp at the exhaust shop, and rev through the range, you may be able to see one rattle, and fix it.
The second possibility is the more likely culprit. The box in the pipe aft of the three cats, this is called a resonator. It has baffle plates inside it. They become loose and fizzle or rattle, usually when you are pulling away, or pulling up to a stop.
Some people cut it out, and put in a straight pipe. Don't do this if you can avoid, it makes the exhaust sound blary. One guy cut his resonator open, tack welded the loose plates, and seam welded it shut again. If you have a friend handy with a welder, and the resonator is rattly, this will fix the problem.
Joe
