Thanks Ronald, I just measure my rears and I am also running 490mm from arch to lower rim. I have had the car lower but speed bump put me off that idea more than handling. Im actually 10mm higher on the from at the mo so may I'll try the reversed tyre pressures first then adjust the front height down 10mm to match the rear.
Hi Tony, pressures 30 front / 28 rear for me too on 185/60 Yoko's.
Another thing to note is that if your car is lowered too much at the rear, this will cause some adverse characteristics as I 've found out on my Sprint.
I'm led to believe that the lower trailing arm on the outer side (if in a bend) will be under such a negative angle that the outer wheel tends to tuck-in even more than the normal weight transfer would induce, causing a very nervous feel at the steering wheel.
I've since adjusted the rear height to 490 mm measured between the underside of the wheel rim and the wheel arch as suggested by LJColeman on his NAB 755T Dolly and the handling is much more secure, without the nervous twitch.
If you have adjustable suspension platforms, I suggest you experiment what settings suits you best. Of the ca. 23,000 Sprints build, maybe only 100 have the thicker ARB so I'm not convinced that 22,900 Sprints have bad handling
Also I can recommend the shorter/adjustable front tie-bars as supplied by Rob of
sprintspeed.co.uk . These give a better turn-in and straight line stability without noticeable heavier steering.
Good luck experimenting