This 4-Link set will give you a lower stance because the 4-link bar is much closer to the axle.

The axle brackets mount on the lower front portion of axle tube housing. 

This is a complete kit including brackets, link bars and rod ends.

Kit includes:
Chassis and rear end housing brackets Photo etched out of .010" nickel-silver plate.
4 4-Link bars made of stainless steel tubes ,050" OD.  Cut these to the length required.
8 Formed-wire rod ends
Watts linkage and a variety of brackets

 Fabrication and assembly required. 

 Photo etched plates and stainless steel rods, 1/25 scale, by Futurattraction