After the install of the Drift Speed high steering angle knuckles, Circuit Sports tie rods, and tension rods, it was time to attack the rear suspension geometry. There's no point to getting the front end to go straight if you can't get the rear to follow along. After weeks of driving with the new front suspension components, I was very confident that Drift Speed knew what they were doing and that Circuit Sports suspension parts were not like the cheap quality you see on eBay. So I went back to Phase 2 Motortrend where they recommended me a set of Circuit Sports rear upper camber arms, rear toe arms and rear traction arms. The 240SX is one of those few cars that are lucky enough to have tons aftermarket support. You can pretty much buy any suspension arm on the car in an adjustable form with spherical rod end bearings. Not only will this allow you to gain the correct suspension settings for any lowered height, it will also remove the slop that factory rubber bushings have.
Circuit Sports Rear Upper... 
Circuit Sports Rear Upper Camber Arms (RUCA) | 
Circuit Sports Rear Toe A... 
Circuit Sports Rear Toe Arms | 
Circuit Sports Rear Traction... 
Circuit Sports Rear Traction Arms |
I've always been the guy with the super-slammed car who always had poor suspension alignment. But now that I've replaced all these arms and had a legit alignment done on the car, I see how much of an improvement correct suspension can play in a car's handling. The improvements are completely night and day difference. And this is not for just the track, but even on a daily street driven car I can feel a huge difference. In the turns, down the straights, and on the highway, everything is so much better and more predictable. Huge thanks to Phase 2 Motortrend and Drift Speed for setting me straight.
Circuit Sports vs OEM | 
These Circuit Sports rear... 
These Circuit Sports rear toe arms fit both S13 and S14. However, the S14 requires wider spacers, which Phase 2 Motortrend included with the purchase. | 
To properly adjust your length,... 
To properly adjust your length, all adjustments must be done in the center rod to keep both end lengths equal. Do not adjust one end, then the other. Instead adjust both all the way in, as short as they go. Then turn just the center rod until both ends come out to the desired length. |
For installation, I just eyeballed... 
For installation, I just eyeballed the length. Drift Speed will do the alignment after installation. | 
Factory arms come with eccentric... 
Factory arms come with eccentric bolts, which allow for some wheel adjustment but not nearly enough. The tip to taking these out is to hold the bolt with an open-end wrench while taking off the nut first. The eccentric washer keeps the bolt from spinning and so you will have to back the nut off first. | 
Koji and Jerod at Drift Speed... 
Koji and Jerod at Drift Speed use a computerized laser alignment machine to get all the adjustments dialed in perfectly. |
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Right rear suspension with... 
Right rear suspension with factory arms. | 
Circuit Sports arms installed.... 
Circuit Sports arms installed. (1) Toe Arm, (2) Camber Arm, (3) Traction Arm |
