To fix A/C compressor crankshaft pulley and be convenient to install / remove centre screws.
Adjustable three-stud design for GM R-4 compressors. Also has applications on some gm, wamer, pitts and ogura clutches.
Siae of three stud: 3.6, 8.0mm
Adjustable three-stud design for GM R-4 compressors. Also has applications on some gm, wamer, pitts and ogura clutches.
Siae of three stud: 3.6, 8.0mm
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