Looking at getting an Atlas for my '89 project. I have been talking directly to AA and was told there may be a tranny pan clearence problem with this setup. They told me to wait on the drive shaft 'cause I may need to buy a smaller diameter shaft... I did take some measurements on my Rockwell axle and the yoke is about 1" more out board than my Dana 60. That may help with the clearence issue... Anybody running this?