UMI Performance

UMI Performance 64-72 A-Body Boxed Lower Control Arms- w/ Dual Roto-Joints

SKU 4042-R

MPN umi4042-R

$399.99 · Available to order

UMI Performance 64-72 A-Body Boxed Lower Control Arms- w/ Dual Roto-Joints

UMI's boxed lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The boxed control arms are fabricated from 0.120" wall thickness rectangular tubing, CNC machined drawn over mandrel bushing holders and MIG welded end caps to keep out unwanted road debris. Each control arm features the correct provisions for adding a stock or aftermarket rear sway bar, sway bar holes are reinforced with a 0.120" wall thickness steel sleeve that is TIG welded and sanded into place. The solid construction combined with the delrin lined Roto-Joints eliminate control arm flex and bushing deflection for improved traction and reduced wheel hop. The Roto-Joint design is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate for a bind free, low friction operation. The Roto-Joint design improves performance over the factory rubber and aftermarket polyurethane bushings by allowing the suspension to articulate correctly, and provide precision handling. The installed UMI Roto-Joint allows rear end free movement when high handling, auto cross or road race is a concern while still being a 100% streetable setup. The installed delrin race, which lines the spherical ball, absorbs shock and road noise for a quiet and smooth operation on any street or track driven vehicle. This control arm set features Roto-Joints on both sides of the control arms. This is designed for maximum performance and suspension travel. Roto-Joints are greaseable and low maintenance making an excellent street setup for your cruiser or race car!

Confirmed vehicle fitment
YearsMakeModelSubmodelDrive
1970BuickSkylark350
1966BuickSportwagonCustom
1968–1969BuickGS 350Base
1964–1972PontiacLeMansBase
1972GMCSprintCustom
1968–1972ChevroletEl CaminoCustom
1964–1970PontiacTempestBase
1970–1971PontiacGTOThe Judge
1967–1972ChevroletChevelleConcours
1970–1972PontiacLeMansSport
1964–1967ChevroletMalibuBase
1970–1972ChevroletChevelleBase
1968OldsmobileCutlassS
1968–1972ChevroletEl CaminoSS
1964–1969BuickSpecialBase
1971–1972GMCSprintBase
1964–1969PontiacTempestCustom
1964–1972ChevroletEl CaminoBase
1972PontiacLeMansLuxury
1968–1972BuickSkylarkCustom
1971–1972OldsmobileCutlassS
1964–1972OldsmobileCutlassBase
1964–1968ChevroletChevelleBase
1969–1972ChevroletChevelleConcours Estate
1965–1967BuickGran SportBase
1968–1969BuickGS 400Base
1965–1967ChevroletChevelleDeluxe
1970–1972ChevroletMonte CarloBase
1964–1969PontiacTempestSafari
1969–1972PontiacGrand PrixBase
1970–1972BuickGS 455Base
1964–1967OldsmobileCutlassHoliday
1971PontiacLeMansT37
1964–1972OldsmobileVista CruiserBase
1964–1971Oldsmobile442Base
1964–1972BuickSkylarkBase
1964–1972BuickSportwagonBase
1969–1970PontiacLeMansSafari
1970–1972BuickGSBase
1968–1969BuickSportwagonCustom
1964–1967BuickSpecialDeluxe
1964–1972ChevroletChevelleSS
1964–1967OldsmobileVista CruiserCustom
1968–1972ChevroletChevelleNomad
1972BuickSkylark350
1967OldsmobileCutlassTurnpike Cruiser
1964–1972PontiacGTOBase
1970PontiacTempestGT
1967–1968ChevroletChevelle300
1968–1972ChevroletChevelleMalibu
1969–1972ChevroletChevelleGreenbrier
1967–1969ChevroletChevelle300 Deluxe
1970BuickGS 455GSX
1972OldsmobileCutlassCruiser
Specifications
CategorySuspension
Sub-CategoryControl Arms
UPC4042-R
CARB ApprovedYes
Prop 65 WarningY
Special OrderYes
Weight18 lb
Dimensions (L×W×H)26 × 6 × 6 in