Cottman Transmission
You se the noise travels down the drive shaft its not the rear end sill ita your trans
Went online to www.findatrans.com put in my info they had sales rep or tech call me said they do free inspections ok i go to cottmans at 1031 patricia#114 san antonio, tx. I talk to tech tell him about noise in rear end he says its ok we do it all. He put truck on lift take trans pan off calls me ...