These rear lower StrongArms are a direct replacement for the stock trailing arms for 1979-2004 Mustang.  They utilize R-Joint Technology and provide added strength to help get the power to the pavement. Direct Bolt-On application no modification required.

R-Joints are a revolutionary rod end design that provides low friction, full range articulation, long service life, lateral stability and quiet operation. 

• Articulates in 3 planes 360 degree axial rotation and 30 degrees of total lateral rotation.

• 17-4 investment cast stainless steel housing with rolled threads.
• Polished stainless ball and RTX10 composite cage provides consistent low friction movement.
• Special RTX10 composite cage needs NO lubrication.
• Self cleaning design…movement not affected by ANY water, grit, dirt, or debris.
• Spring loaded closure keeps mechanism tight and rattle free for LIFE!