After installing some IPD heavy duty springs in my 740 wagon it offset the rear axle side to side. Shifted the axle towards the passenger side. I then installed the IPD adjustable panhard rod and shortened the rod (From Stock) and pulled the axle back center and inline with the driveshaft. Problem is the driver side fender to top of wheel clearance is less on the driver side rear and higher on the passenger side rear. My question is, Would 14 gallons of gasoline at approximately 98 LB. cause this sagging on the driver side, since the gasoline tank is on the driver side ? Correcting the axle center also drop the driver side fender height even more when pulling the axle over to the driver side, pryor to panhard bar change. Rides nice and straight now, but I'm still at a lost on why the car still sags on the driver side. All new shocks and the bushing are all fine.Cars never been in an accident. Brains Hurting Now !