[The Critic]

After checking the alignment at the 10,500 and at the 15,500 marks (and obtaining the same rear toe readings both times), it is clear that the chassis and suspension parts have "settled" on my Prius and that an alignment shim will be needed to properly align the car.

Although my rear toe is technically in-spec the LR toe is not ideal. It is likely responsible for the 0.09 thrust angle and the slight "unsettled" feeling that I get from the LR corner.

I have already ordered a pair of SPC 75800 shims and will cut and install them and have Firestone recheck the alignment under the lifetime alignment plan.

However, on this car, has anyone tried installing shims? What will it entail? Will I need the SPC 75970 shim spacer kit due to the rear caliper? I think this may be a bit more difficult than a Gen II due to the rear disc brakes and the need to do a linear solenoid calibration whenever the brakes are touched.

If anyone has any experience with this, please let me know.

Thanks.