These control arms from UMI Performance  are designed to bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end  into a 1978-1988 GM G-Body; this includes Monte Carlo, Malibu, El  Camino, Regal, Grand National, Grand Prix and Cutlass. These upper  control arms are built at the correct angle to attach to the G-Body  chassis as well as the A-Body rear end "ears". These control arms are a  must any time this swap is being completed. Using factory control arms  will cause drastic rear end bind and incorrect driveline angle, this  leads to traction lose, vibrations and unsafe handling.   These control arms are supplied adjustable for easy on-car  adjustability to set correct pinion angle and allow adjustment for  installation if needed. Adjustments are made using an aircraft quality  4140 Chrome Moly heat treated adjuster and QA1 spherical bearing rod  end. The QA1 rod end allows rear end free movement when high handling,  auto cross or road race is a concern; it also works excellent as a drag  race item by eliminating rear end bind. Upper control arms feature TIG  welded construction, 4140 Chrome Moly tube adaptors to ensure thread  durability and brilliant powder coat.   Features:  - TIG Welded Construction - 4140 Chrome Moly Tube Adaptors - CNC Machined 6061 Aluminum Step Bushings  - Durable Long Lasting Powder Coat Finish - 4140 Chrome Moly Heat Treated Zinc Plated Adjuster - On-Car Adjustability using Right and Left Hand Threads - Features Precision CNC Machining to ensure Tolerances - QA1 3/4" Hard Chrome Plated, Teflon/Kevlar Self Lubricating Race Rod End
Installation Instructions