4056-2 - 1964-1972 GM A-Body Upper A-arms, Adjustable, 1/2” Taller Ball JointsNOTE : The UMI 4056 2 upper a arm is designed to work primarily with lowered cars. We do not recommend using the 4056 2 with cargo coils or above stock height cars, as the bump stop may contact the cross brace. UMIs adjustable upper a arms with taller ball joints are designed to work with factory height spindles. UMI is not responsible for fitment issues which may arise from using incompatible components.

Made from 4140 CrMo steel

For use where 5W30 is recommended

Our stud replacement kit is available for those requiring replacement hardware for their front lower control arm per our TSB 23-01

Each of these six different lubricants can be used as a pre-mix or in oil-injected systems

and allow for full articulation with the proper ball joint angle

pumps and rings

2” Lowering

Prolongs the useful life of older engines without updated valve seats

now available in Chromoly

GM 88862497

Suitable for VW/Audi 502

Mercedes Benz MB 229