Your shimmy could be from a bent rim...jack the wheels off the ground and set a brick or tool box next to the tire and spin it while watching the gap between them, if it's bent you'll see it...
Mike B
Mike Boteler
1956 Chevy 3100 Resto Rod 1952 Willys M38 Army Jeep 1983 Jeep CJ7 Laredo 1984 Jeep CJ7 +++++ Silver Spring, MD