Silinda kuu ya breki ya GM ya ulimwengu wote imetengenezwa na chuma cha kutupwa.Ni aina ya kipenyo cha inchi moja.Kuna bandari mbili upande wa kushoto, ambayo ni 9-16 ″ & 1/2″.Ni ngumi kwa mifumo ya breki ya Diski/Durm au Ngoma/Ngoma.Na inafaa kwa Buick Skylark, Maalum;Chevrolet Camaro, Chevelle, El Camino, Malibu, Monte Carlo;Oldsmobile 442, Cutlass, F85, Vista Cruiser;Pontiac GTO, Lemans, Tufani;nk... Kwa maelezo ya maombi ni kama hapo juu:
1964-1972 Buick Skylark
1964-1969 Buick Maalum
1967-1969 Chevrolet Camaro
1964-1972 Chevrolet Chevelle
1964-1972 Chevrolet El Camino
1964-1967 Chevrolet Malibu
1970-1972 Chevrolet Monte Carlo
1964-1971 Oldsmobile 442
1964-1972 Oldsmobile Cutlass
1964-1972 Oldsmobile F85
1964-1972 Oldsmobile Vista Cruiser
1967-1969 Pontiac Firebird
1964-1972 Pontiac GTO
1964-1972 Pontiac Lemans
1964 -1970 Tufani ya Pontiac