Mustang OEM 4-link vs 3-link Rear End

Couldn’t find any comparison in a quick search. Planning out my build and would like to hear from the forum the benefits vs cost of a 3-link vs. sticking with the donor 4-link rear suspension set up.

I have a donor car and just need to convert it to 5-lug, not planning on making the upgrade to 3-link, but curious what everyone’s thoughts are on how much benefit the 3-Link and if it is really worth the extra cost.

My current plan is to install the 4-link with the upgraded upper and lower control arms that I had on my Mustang, if I have a problem I would potentially update the uppers to the adjustable type.

Let me know your thoughts.

Easy decision, unless drag racing is your thing, get rid of the 4 link and go with the 3 link. Better ride and handling with the 3 link.

Much better suspension geometry with the 3 link. The 3 link is a major improvement over the 4 link in ride quality and handling. If the budget allows go with the 3 link. Or you can upgrade later if you decide to do so.

3-link!

:)

No question 3 link is better. I have done it twice. The 4 link inherently binds when the car rolls. Ford made it work OK by using soft rubber bushings. When you stiffen up the bushings that really helps in a straight line. And it hurts in a corner. Sure wish I could find it but I have tried w/o luck. One of the major Mustang aftermarket companies made a mockup of a 4 link. The chassis attachment points were mounted on a wall. An axle was set in place on a support that would allow it to move like it would in a car. They started w/ OE control arms and the axle would roll pretty well. Then they started substituting aftermarket arms. Each new arm allowed less roll. The final test was all 4 arms w/ rod ends in them. That locked the axle in roll.

Thanks for the advice guys, went ahead and updated my order to 3-link since I am planning to track the car a little and I don’t want to feel too uncomfortable taking this thing around corners.

Any other opinions here would be good as this is a great topic for anyone mulling over this decision.

Quote:

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Originally Posted by RonJon24

Thanks for the advice guys, went ahead and updated my order to 3-link since I am planning to track the car a little and I don’t want to feel too uncomfortable taking this thing around corners.

Any other opinions here would be good as this is a great topic for anyone mulling over this decision.

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Smart Move RonJon, Smart Move!

Check Out My 3-Link Set Up Which Has No Fox Body Wheel Hop!

https://youtu.be/PCngiKoopkA

It's the standard set up with the Standard Koni Red Shocks.

I originally had the 4-link and Mustang spring setup. Even when going 15 mph around a turn on a sidestreet - it was weird, the rear end made funny sounds and it almost seemed as if the rear of the car was "hopping" around the turn.