I just dual cased my 4-runner. My truck sets 8" over stock and has been SAS. I have this gnarly grinding/howl coming from either the furthest transfer case back or the transmission. I just replaced the tranny yesterday and I also replaced the furthest back transfer case. The sound is still there. I know many people with the same setup who drive around with no problems. What's the deal with mine? Is it my output shaft again. Coninsident-maybe. Driveline angle doesn't look to steep. Anybody have suggestions?
