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Thread: 1998 suburban 6.2 diesel swap

  1. #1
    Join Date
    Jan 2021
    southeast kansas

    Default 1998 suburban 6.2 diesel swap

    How do I make a 4L60E work in a 98 suburban with a 6.2 diesel?

  2. #2
    Join Date
    Mar 2000
    South Central Pennsylvania, USA


    You'll need a standalone controller for the electronic transmission - something like this:

    There are other options out there, just that was the first one I turned up.
    '94 GMC 6.5TD K1500 4L80E 2-Door Yukon SLE 221K
    '93 Chevrolet 6.5TD K2500HD NV4500 Std. Cab Longbed 187K
    '85 Toyota 22R RN60 4x4 Std. Cab Shortbed 178K (Currently retired for rebuild)
    Diesel Page Member #2423

  3. #3
    Join Date
    Apr 2009
    Sheridan, Oregon


    Wouldn't a 1998 have a 6.5L and either a 4l80E or 4l60E? Seeing as a 98 would be 'fly by wire', I would say have the ECM flashed or reprogrammed.
    2004 Chevy K3500 CCLB DRW Duramax. Stock.

    1992 Sea Ray 300DA. 30 plus foot Express Cruiser on a trailer. 13,500# boat and trailer and 69' of combined length rolling. Over length/width permitted load.

    SOLD-95 GMC K2500 SLE 6.5L TD, Relocated PMD to bumper #9 res., Custom Lowes special induction tube, Triple gauges on the pillar EGT, Trans, Boost, High Idle Mod, TCC-Lock up Mod, Custom Back up camera, DIY Manual Wastegate Controller, 4" from down tube to 5" stacks, Vac Pump Removed,2007 wheels, WMI by Cooling Mist 8gph @3psi 11gph on demand

  4. #4
    Join Date
    Dec 2003
    Yukon Canada


    This is an old thread...
    I would assume he was looking at putting it in one that had a gas engine in it
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews

  5. #5
    Join Date
    Apr 2001
    Newberg Oregon


    The 6.5 was never married up to the 4l60E....4L80E was the box used.

    The early 6.2 (1500 trucks) got the 700R4 (4L60) and that was a ticking time bomb.....I tore up several 700R4 behind 6.2's
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)

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