the rear suspension setup on the 1988 only crxs were close to how it was setup on the ITRs (but on the crx it was called passive rear steering...allowing the rear end to swing out to turn the car better)

-if you swap out the rear lca to an 89 or newer crx (you can do this by just adding crx si rear discs) then you can use the whole hyperflex master kit designed for the 89-91s

-there are also PU rear trailing arm bushings ($120) from prothane as those units weaken over time

-another suspension mod are radius arm bearings up front to take out slop from those units too