i have a rear end question!

Lots of other factors, though as well..................tires and pressure, fuel in the tank, weight "or not" in the trunk and on which side (battery?) and the springs themselves.

Remember that all conventional front engine rear drive, IE normal engine rotation will try and pull the right wheel "up" because of torque reaction with the driveshaft. That's why if you look at any car from the rear as it launches, the right corner wants to fall.

This is going to try and steer the car some, depending on how stiff everything is

Also, if the springs are weak enough, the are going to try and "wrap" as the axle tries to twist from torque. This will change the effective center of the axle as it sits in the car. If you are running "really weak" /6 springs, etc, this might be pretty severe.