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Shifters for C/K & Silverado HD

This page is for "heavy duty" GM C/K models:

  • 1500 series w/ diesel (1988-1999)
  • 2500 series > 8500 GVWR or diesel
  • all 3500 series
  • + all 1988-1991 classic R/V series (Crewcab, Blazer / Jimmy, Suburban)

Manual transmission guide:

Year # gears RPO Trans Shifter notes
1988-1991 4 M20 Muncie SM465 integral tower not serviceable
1992-1994 5 MT8 NV4500 w/ "round top" integral tower; shifter cannot be changed w/o swapping to newer lid
1995-2000 5 MW3 NV4500 w/ "square top" 1.75" stub protrusion below flange
2001-2007 w/ 6.0L 5 MW3 NV4500 w/ "square top" - tall lid 2.0" stub protrusion below flange
2001-2007 w/ 6.6 or 8.1L 6 ML6 ZF S6-650

2003-2014 C3500 HD - Mexico domestic market = TR-4050 (RPO M96 & MQ7) - similar to NV4500 but shifter may not interchange

  • NV4500 warning: the shifter base for 1995-2000 is different from 2001-2007 because the lids are different
  • NOTE: any 1988-1995 light duty C/K could be optioned w/ HD trans - check your RPO label and/or see if case is cast iron
    • HD trans was not offered for GVWR < 8500 lb after 1995
  • For most 1500 series (1/2 ton) & rare 2500 series < 8500 GVWR (except diesel) - see the Silverado 1500 page