Triangulated Rear Four Link Kit
GM has used a triangulated rear 4 link in many of their cars for decades. The design eliminates the Panhard bar. To accommodate many frame widths, the formed upper frame brackets may need to be trimmed. Bars are 1″ heavy-wall seamless tubing, tapped one end 3/4-16 (or 5/8-18 for the standard bushing kit) and notched for the urethane bushing tube on the other end. Upper bars are about 18″ c-c and lower bars are about 25″ c-c. Coil-overs can be mounted in one of three holes on the axle brackets. The bracketry for each kit is matched to the OD of the bushing for a clean appearance.
Axle brackets and upper axle tabs are 3/16″ pickled & oiled mild steel. Upper frame brackets are CNC formed 10 gauge pickled & oiled mild steel. The part of the bracket which welds to the frame for the lower frame brackets is 3/16″ thick, and the formed bar brackets are 10 gauge P&O mild steel.
Please see related products for an adjustable ride height setup tool
that can be used in place of your coilovers while you build the car. You
can keep your coilovers in perfect condition and make sure you have
room for things like exhaust and the driveshaft through suspension
Available with axle brackets for 3-1/4" tubes too - see Add-Ons. Only with large bushing kit.
Assembly and installation tips are provided.
Two triangulated four link kits are offered. Both are complete kits with the following variations:
318500 (available welded and ready-to-weld)
1-3/4″ wide, 1-5/8″ OD urethane bushings
3/4-16 threaded adjusters
218500 (available welded only)
1-3/8″ wide, 1-3/8″ OD urethane bushings
5/8-18 threaded adjusters
NEWS: The 1-3/8″ bushing, ready-to-weld kit has been discontinued. We will continue to produce welded 1-3/8″ bushing kits, but now at the same price as the larger bushing kits. Please allow one week lead time for this kit.
Shipping charge is $36 – $41 (10% of the order total; minimum $15, maximum $60). Ships via UPS to the lower 48 States and 10 Provinces. No duty or brokerage charges. No surprises. Tracking information will be emailed.