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1977-1990 B-Body Crossmember

1977-1990 B-Body Crossmember

  • Fits Models: Caprice, Impala, LeSabre, Oldsmobile 88, Bonneville, Parisienne, Catalina
  • Fits Years: 77-90
  • Fits Transmissions: 700R4, 4L60, Pre-1996 4L60E, TKO-500, TKO-600, TKX.
  • This crossmember will fit 1996 and later 4L60E, and 4L65E transmissions for LS engine swaps.
  • The RCB3-700 is designed for the 700R4 / 4l60E transmission with a case mount transmission mount. For a 700R4 with a tailshaft mount purchase the RCB3-400 crossmember instead.  
  • Engineered with 2 mounting slots to accept a standard height transmission mount.
  • We recommend a polyurethane transmission mount. The GMTM is sold separately. 
Boss Hog Torque Converters recommended for this application:
48402, 48442, 48443, 48441, 48401, 48403, 48453
$395.00
1977-1990 B-Body Crossmember—
$395.00
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Description

  • Fits Models: Caprice, Impala, LeSabre, Oldsmobile 88, Bonneville, Parisienne, Catalina
  • Fits Years: 77-90
  • Fits Transmissions: 700R4, 4L60, Pre-1996 4L60E, TKO-500, TKO-600, TKX.
  • This crossmember will fit 1996 and later 4L60E, and 4L65E transmissions for LS engine swaps.
  • The RCB3-700 is designed for the 700R4 / 4l60E transmission with a case mount transmission mount. For a 700R4 with a tailshaft mount purchase the RCB3-400 crossmember instead.  
  • Engineered with 2 mounting slots to accept a standard height transmission mount.
  • We recommend a polyurethane transmission mount. The GMTM is sold separately. 
Boss Hog Torque Converters recommended for this application:
48402, 48442, 48443, 48441, 48401, 48403, 48453
1977-1990 B-Body Crossmember | SSTubes