I was adjusting the caster on my truck yesterday and noticed that my lower ball joints had an 1/8 " of up and down play in them is this normal for a truck with 40,000 miles? Also I adjusted my caster from the stock setting at 12:00 -12:30 to 10:30 11:00 the truck does drive a little better,will adjusting it further out make it track better,where I have it adjusted now is as far as I want to go before the trackbar hits the diff, cover. any suggestions thanks. Gregg