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How 1994-2004 Mustang Lower Control Arms Work

Written By: Stanley Sadowski

Shop Mustang Control Arms

Tighten up your 1994-2004 Mustang's rear suspension and gain the grip you need to launch off the line faster with a set of rear lower control arms.

Shop Control Arms

Your 1994-2004 Mustang's rear lower control arms play a huge role in how well your Mustang grips during hard launches and around turns. Upgrading your stock lower control arms is an instantly noticeable mod that's going to reduce 60 foot times and get you off the line much faster.

American Muscle

What Purpose do Lower Control Arms Serve on 1994-2004 Mustangs? 

  • Connects the rear axle to the chassis and supports the up and down movement of the axle
  • Aftermarket Lower Control Arms provide better traction, times off the line, and less wheel hop
  • Aftermarket models are made up of tubular design or rectangular boxed steel construction
  • Polyurethane bushings are ideal for street and occasional drag strip use

The lower control arm (aka LCA) connects the rear axle to the chassis of and support the up and down movement of the axle and is also where the rear spring is mounted. The factory design of the lower control is far from superior which was why Ford added quad shocks to the rear axle because the stock lower control arms offer a little more lateral movement of the rear than we would like. Is there way to solve this? Yes! Think of investing in an aftermarket set of lower control arms

Should I Replace my Mustang's Lower Control Arms? 

An aftermarket set of lower control arms is recommended for all 1994-2004 Mustangs, even if you strictly daily drive you Mustang and especially if it sees the track every other weekend. Aftermarket LCAs greatly improve your ability to launch the car and provide added grip when stabbing the gas. They give you better traction, faster times off the line, and less wheel hop while also improving your SN95’s cornering ability by adjusting the geometry of the car’s rear end. It’s not that stock control arms don’t work well, they do. They were just build too weak to handle the load bearing forces put on them, especially by a performance-minded driver. 

Aftermarket Lower Control Arms

All aftermarket models are either made up of a tubular design or a rectangular boxed steel construction. Both of these are a significant improvement over factory. Depending on what you use your vehicle for would determine which bushing setup you should get. 

Polyurethane bushings are ideal for street and occasional drag strip use but if you truly want a rock solid lower control arm than I would suggest something with a spherical bearing on the axle side. While this will further improve your launching abilities it will also made the ride quality a little stiffer than a poly bushing would. 

A couple of products also offer an adjustable spring perch. This allows you to adjust the ride height in the rear of the car with ease. It allows you to lower the rear of the car up to 1 inch or raise it by 2 inches. Having this adjustable lets you further fine tune your suspension for perfect launches and will even allow you to fit in a taller tire for certain applications.