After the warranty is up, well... it’s open season to rip everything out, drop a few dollars and let the aftermarket improve the handling characteristics of your car. The most popular upgrade today has always been lowering springs, with sway bars and coilovers closely behind. Often overlooked are the many suspension links that keep a car connected to the road. Many enthusiasts out there barely know what these parts do, let alone how to set them up correctly.
When upgrading suspension links, the main focus is on being able to take control of your settings. The factory parts often have little to no adjustability and usually have loads of play from the years of abuse.
Vuk Zivic over at Absolute Motor Specialties understands many older Nissans are still on the road and could use some links built to ISO9001 standards. Many Nissan suspensions share components, mainly the popular: Z32, R32 and S13 chassis. So all these links (with minor tweaks) are the exactly same.
The hot sellers according to Zivic are the Rear Upper Control Arms (RUCA). Many Nissans are lowered and that has altered the geometry causing too much camber wear. The handling becomes a bit more unpredictable. Or the owner wants to dial-in even more camber for aggressive applications. The AMS-designed RUCAs are mandrel bent tube welded to a bracket with extra gusset plates for strength. The active end features a stainless threaded stud, lock nut and a Heim joint for smooth operation. The whole piece is not only lighter than the pressed-steel original, but has less flex. The AMS RUCA is also adjustable with a range of up to 5-degrees of negative camber.
After a solid 25-30 laps on the track, the suspension is much tighter and GT-R just responds quicker as it dances around corners. Look for some fender-rolling and dumped ride-height soon!