FITS:*"BIG GM POWER" 700 SERIES SAGINAW BOX, WHICH WAS THE DOMINANT POWER STEERING BOX ON ALMOST ALL GM CARS THROUGH 1977 & ABOUT 1/2 OF ALL GM CARS FROM 1978 TO THE EARLY 90S; THIS BOX IS DISTINCT FOR ITS SQUARE, 4-BOLT HOUSING COVER & FEATURES A 1 1/8"-32 SPLINE PITMAN ARM SHAFT*"NEW BIG GM POWER" 600 SERIES DELPHI BOX, WHICH IS A LIGHTER, MODERN REPLACEMENT BOX FOR THE 700 SERIES BIG GM POWER BOX; IT IS ALSO COMMON ON MANY MODERN-DAY TRUCKS; LIKE THE 700 SERIES, IT IS DISTINCT FOR ITS SQUARE, 4-BOLT HOUSING COVER & FEATURES A 1 1/8"-32 PITMAN ARM SHAFT FITS DRAG LINKS FROM:*1978-88 CHEVY CHEVELLE, EL CAMINO, MALIBU, & MONTE CARLO*1978-87 BUICK CENTURY, LUXUS, REGAL, & SPECIAL (RWD)*1978-88 OLDSMOBILE CUTLASS, F85, VISTA CRUISER, 4-4-2, & CALAIS (RWD)*1978-81 PONTIAC GTO, LEMANS, GRAND AM (EXCEPT 1985-89), GRAND LEMANS, TEMPEST, & T37 100% BRAND NEW PIECES ENGINEERED TO DIRECTLY REPLACE OEM PITMAN ARMS SPECIFIC DIMENSIONS:*MEASURES 6.219" FROM CENTER OF PITMAN SHAFT HOLE TO CENTER OF DRAG LINK HOLE*1 1/8"-32 SPLINE PITMAN SHAFT HOLE, COMMONLY REFERRED TO AS "BIG SPLINE"*DRAG LINK TAPERED HOLE MEASURES .550" MAJOR I.D. & .460" MINOR I.D.
