Howe
Precision low friction upper bolt-in upper ball joint (K6024) with an aluminum cap fits all asphalt and dirt cars. Commonly fits Keyser A-arms and other non-metric uppers. (Big bolt pattern). 1-1/2” per foot taper
Moog
Fits most dirt & pavement late models, Pinto taper, 63-71 GM trucks.  1-1/2” per foot taper