Project Humpty '74 J20 Diesel Build UPDATED!

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  • bufurd
    327 Rambler
    • Apr 13, 2008
    • 584

    Humpty went over 70,000 miles yesterday, I have no regrets about anything. The ride, performance, MPG, etc. is everything I hoped it'd be. Zack really is a stand up guy in all respects, I wish him and his family all the best.
    I've read a lot of mileage claims of high teens and low 20s, also some high 20s and a few low 30s. I'm in the last bunch, I carry 68 gallons of fuel and average 26.7 on most fills. Driving like grandma (no offense) 30 is no problem.
    Current fleet
    Abner-73 He started it all in 1979 (plow truck now)
    Bufurd-69 Fixed up to take Abners place as DD
    Delta-70 Built for fun, 455 Olds, T-18, D-20, 4:10 gears
    Humpty-74 J-20 4BT, NV4500, 30+MPG
    07 JK Wife bought new...
    13 Grand Cherokee Trail Hawk, wifes new ride

    Comment

    • DieselSJ
      304 AMC
      • May 19, 2003
      • 1925

      Makes me want to dump the 6.5 and go to a 4bt.
      -87 Grand, 6.5L diesel, MHI TE06H turbo, Water/air intercooler, Art Carr 700R4, CS-130, hydroboost. 21/24mpg, dead 229 [Custom 242 on the way]
      -99 XJ Limited.
      -Jeepspeed 1717 -Built 4.0, FAST EFI, Rubicon Express, Bilstein, Rigid Industries, 4 Wheel Parts, G2 Axle, Currie Enterprises
      -Member, FSJ Prissy Restoration Association

      Comment

      • zmjeeps
        304 AMC
        • Jun 14, 2000
        • 1662

        Updated Milage

        Humpty is now well over 100,000 miles and still going strong!
        Zack Heisey
        Z&M Jeeps
        419.893.4JEEP (4533)
        www.zmjeeps.com
        [email protected]

        Comment

        • bufurd
          327 Rambler
          • Apr 13, 2008
          • 584

          127,340 to be exact
          Current fleet
          Abner-73 He started it all in 1979 (plow truck now)
          Bufurd-69 Fixed up to take Abners place as DD
          Delta-70 Built for fun, 455 Olds, T-18, D-20, 4:10 gears
          Humpty-74 J-20 4BT, NV4500, 30+MPG
          07 JK Wife bought new...
          13 Grand Cherokee Trail Hawk, wifes new ride

          Comment

          • Bill Moore
            304 AMC
            • May 22, 2006
            • 2139

            Originally posted by DieselSJ
            Makes me want to dump the 6.5 and go to a 4bt.
            probably a good idea in the long run, what mileage are you getting with the 6.5?
            DDs
            67 KJ715 4bt AA OD 465 np205
            78 J20 Chevy 305 nv4500 np205

            Projects

            Sons Build 1980 short bed J10, j20 axles, 4bt, nv4500, np205, shortened M715 bed and fenders

            Freedom is not Free, it is paid for with Blood

            Comment

            • bufurd
              327 Rambler
              • Apr 13, 2008
              • 584

              Just turned over 163,000 miles, changed the last wheel bearings (left rear) today. Not bad considering the axles now have over 200,000 on em, also ordered a replacement Bestop drivers bucket. :
              Rust is the enemy, I will win
              Current fleet
              Abner-73 He started it all in 1979 (plow truck now)
              Bufurd-69 Fixed up to take Abners place as DD
              Delta-70 Built for fun, 455 Olds, T-18, D-20, 4:10 gears
              Humpty-74 J-20 4BT, NV4500, 30+MPG
              07 JK Wife bought new...
              13 Grand Cherokee Trail Hawk, wifes new ride

              Comment

              • rang-a-stang
                Administrator
                • Oct 31, 2016
                • 5509

                Awesome! I love hearing this stuff! So encouraging to those of us that don't drive our rigs everyday.
                Chuck McTruck 71 J4000
                (Chuck McTruck Build Thread)
                (8.1L swap questions - PerformanceTrucks.net Forums​)
                79 Cherokee Chief (SOLD, goodbye old buddy)
                (Cherokee Build Thread)
                11 Nissan Pathfinder Silver Edition 4x4
                09 Mazdaspeed3 Grand Touring
                00 Baby Cherokee

                Comment

                • SOLSAKS
                  304 AMC
                  • Jul 25, 2016
                  • 1781

                  i have a 1990 wagoneer with over 240,000 on it
                  and it appears totally unmolested
                  barely runs/weak but it made it a long way
                  i did not drive it any of the 240,000 ( parts vehicle )
                  but nice to know they can go that long.

                  dave in NC
                  SOLSAKS - dave
                  1976 J-10 HONCHO Fleetside
                  1982 J-10 Fleetside
                  1988 grand wagoneer
                  2004 RUBICON jeep
                  Benson, NC

                  Comment

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