The upper and lower trailing arms connect the suspension knuckle to the frame along the length of the car (parallel to the drive shaft) and control the fore and aft motion of the knuckle as it moves through the suspension's range of motion.
Trailing arms come in red anodized aluminum or plain steel (great for powder coat or paint). Because of the thinner tubing wall and reduced diameter, the steel arms are only 2/3 as strong as the aluminum (based on the critical load of a buckling column with an effective length the same as the maximum rod end bolt distance) but are at least as strong as the OE dogbones.
Use the links below to see additional information on the key components of our system
C4 Rear Trailing Arms
Click on thumbnail for larger view
Use this link to our reference library to view available information on assembly & setup of the C4 trailing arms.
Typical trailing arms, finish options and kit contents
Gallery of trailing arms installed on customer's cars.