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Triangulated Rear Four Link Kit

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Product Details
Brand: Welder Series

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 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 travel.

Available with axle brackets for 3-1/4" tubes too - see Add-Ons.

Assembly and installation tips are provided.

What's the difference between welded and ready-to-weld? In the welded kit, anything that can be welded by us is welded. The lower frame brackets, bars, adjusters, and the coil over support block inside the axle brackets are all welded. The ready-to-weld kit has nothing welded. Some people find this an advantage because they can save some money and have the option of tweaking the angle that the bar brackets are welded to the front frame bracket.

318500 (available welded and ready-to-weld)
1-3/4″ wide, 1-5/8″ OD urethane bushings
3/4-16 threaded adjusters

Installation instructions

Shipping charge is $54 – $59 (10% of the order total + $10; minimum $15, maximum $75). Ships via UPS to the lower 48 States and 10 Provinces. No duty or brokerage charges. No surprises. Tracking information will be emailed.

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