If it was all fine beforehand then I'd say space down the box bit. You can buy a kit for this for about $45 if you're not keen on fishing around for identical washers in the bucket under the workbench
Will only need a little bit by your description. So long as you can clearly state it's not tyres, wheels driveshafts etc. Just a damn obvious reminder.
There's always possibilities it's related to something that's indirectly linked like an stuffed engine mount rubber. Worth checking this out too, common GQ problem.
When I lifted mine I replaced both (stuffed) engine mount rubbers and made sure I regreased all shafts and bearings, so I knew that these were all good.
An update on mine today.... I actually did the alignment some 4 months later.
The big issue with the GQ's is the variability - many SWB get away with 3" no probs (and LWB 4"), but buying a 3" kit and then having issues is never good. Thats why I only went 2".
Of course, some ignore the problem anyway.
Alignment done on mine today even 2" is actually slightly too much lift... cant quite get correct castor adjustment on the front right, but front left could easy go up another inch and some....
I've had my lift on for a few months without alignment so I'm kinda thinking well... it was ok lifted 50mm without re-alignment I'm sure I can sqeeze some 15mm coil spacers in now... that's only 1/3 the change that I never adjusted before so it wont be that bad.
