The rear ride height is now at 165 mm by moving the rear spring shackle position 57 mm (down to the lowest hole). The diff is now at 45mm from the floor (at the reenforcing plate for seat belts) I knocked off the weld nuts so that issue is gone, As for suspension travel it's now 2.5 inches (actaully 66 mm)

Keep in mind that the diff snout is roughly at the same point as the front mont for the traction bar so theoretically as the axle rises the snout would pivot away from the body..................of course it's not that simple as the upper link in the system is the leaf spring itself.

I am going to run the car at a local autocross this weekend end see if there are any issues.

a12grunt: as for the fitment issues yes most of it is due to fitting the XXL H190 into H145 hole. The Nismo springs will lower the car near 3 1/2 inches / 90mm with the standard spring shackles. The bushes I'm using are straight out of the suspension manual on this page. Aluminum at the front frame rail and urethane at the leaf spring. The traction bar uses rod ends.

Tom