I wonder if your front shakes and you need parts to attempt to stop it ? I just sold my 81 gmc 7000 with coleman axle and rockwell transfercase it also had a alison automatic. Anyway I did find a supplier and bought all the stuff and had it installed and it still shook.Have you had the pleasure to look behind the front drum?My truck was a former fire truck with only 15,000 miles. I still have the boots we were too scared to change them!
