Well been seaching these forums on rear end noise on some of these astro and safari`s. Took the pot off mine yesterday. The spider gear was sheared in half. that was all the noise and growling during acceleration around 30 40 klm. pot full of fillings. so i ripped it out got one at a scrap yard and changed it out. So if any of you are having any of these issues chech thes spider gears. Ill post so picks of the broken part.