mcrace cars can help you out here..but from a none chassis building guy..i will tell you that the 4 link comes in a kit and you have to do some major modifications to install on a car that doens't have this set up already and some that do.......also keep in mind "BUDGET" and "RACE CAR" do not go together in the same sentence very well...speacially when you start talking about having a 4 link installed or other chassis work....
Most "GOOD" LOCAL Chassis builders here locally get anywhere from $4500 TO $5500 for a 4 link set up to be installed. i have seen higher depending on what must be done.
if you do not hear anyhthing i am sayimg in my reply to you please listen to this.......Please choose the proper chassis builder to put together (fabricate) your 4 link..the cheapist way is not always the best route to go...Please take this to heart..
thanks brian
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "