This complete kit includes (1) set of UMI Performance single adjustable lower control arms and (1) set of UMI’s "on-car" double adjustable upper control arms. These direct bolt-on replacements are designed to minimize wheel hop, improve cornering while lowering ET's and help track consistency. The upper control arms feature on- car adjustability allowing for quick and easy pinion angle adjustment; its as simple as loosing 2 nuts! The spherical rod end allows for a “bind free” operation, making a great upgrade for both your track and auto cross driven vehicle. The polyurethane bushings are designed to be bolted to the chassis for a quiet comfortable operation. Lower Control arms are constructed DOM mild steel tubing 1.500” OD x 0.120” wall, 4130 chromoly threaded tube adaptor, completely CNC machined and fully TIG welded for outstanding strength. The upper control arms feature 0.250” mild steel mounting points, 4130 chromoly tube adaptor and 4140 chromoly heat treated 1.120” solid adjuster; truly overkill. Control arms feature Energy Suspension® polyurethane bushings, zinc plated steel sleeves and “on-car” grease able zerk grease fittings. Adjustments can be made using the high quality QA1® Teflon lined spherical rod end's that operate for a quiet bind free performance. Our lower control arms feature reinforced spring perches and heavy duty sway bar mounting points.. - 0.120” Wall Thickness DOM Mild Steel Tubing - 4130 Chrome-Moly Threaded Tube Adapters - 4140 Heated Treated Chrome-Moly Adjusters - QA1 ¾” Hard Chrome Plated, Teflon/Kevlar Self Lubricating Race Rod Ends - Complete Kit Features Precision CNC Machining and Fully Welded - CNC Machined 6061 Aluminum Step Bushings with Zinc Plated Steel Sleeves - Energy Suspension Fluted Polyurethane grease able Bushings - Uses OEM Hardware. Installation: Easy bolt-on installation in about 1 hour--no drilling required. Uses OEM hardware.. UMI Performance 99-04 Ford Mustang Upper & Lower Adjustable Control Arms. 101417 - 1999-2004 Ford Mustang Upper & Lower Adjustable Control Arms. Control Arm Kit. Features:

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