I replaced my stock passenger side, to an after market aluminum Weiand driver side. I had a clearance problem going from stock to after market and required a $30 March component for my March pullie setup to pull my alternator in from the frame. The after market pumps, right hand, has the belt tensioner bolt about 3/4" further to the passenger side. I could not forsee any issues going from driver side to stock passenger, espescially if yours is after market now (if it is). I have March pullies and alternator bracket which are a pretty penny. My conversion was nearly painless, so going opposite I would imgine would be easier, without clearance issues.
Before;
After-market;
