G30 Models With 7/8" Nut
PROCEDURERemove the upper control arm bumper. Jack up the frame to raise the wheel off the ground. This will allow the upper control arm to drop down far enough to use a socket on the nuts and permit shim adjustment. Reinstall the upper control arm bumper when alignment is completed.
A normal shim pack will leave at least two (2) threads of the bolt exposed beyond the nut. If two (2) threads cannot be obtained, check for damaged control arms and related parts. The difference between front and rear shim packs must not exceed 7.62mm (0.30 inches). Front shim pack must be at least 2.54mm (0.10 inches).