Merchant Automotive 10001 Transfer Case Pump Upgrade Kit The updated factory anti-rattle clips do not prevent pump rub - this is the only kit available that will PREVENT pump rub. This kit does NOT FIX cracked housings, it only prevents pump rub from happening. IMPORTANT: Install by a Professional is highly recommended - REQUIRED FOR INSTALL: Transfer case needs to be removed and disassembled FITS: 1998-2007 GM transfer case models 136, 146, 246, 261, 261HD, 263HD, 263XHD, 261XHD INCLUDES: Merchant Automotive billet transfer case pump housing, Transfer case adapter gasket at trans, RTV Silicone, Blue Threadlock . DOES NOT INCLUDE PUMP OR TRANSFER CASE