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Thread: '89 GMC Suburban restoration/build up project.

  1. #1
    Join Date
    Jun 2011
    Location
    Henderson, NV, USA
    Posts
    64

    Default '89 GMC Suburban restoration/build up project.

    ive got a build thread over on CK5 but this section of expo seems to be heavy on suburbans so i figured i'd jump in too.

    it's sat since 2005, ive gone through phases of wanting to build it up, chop it up into a buggy, and get rid of it. hell, i tried selling it twice, actually very glad it didnt go. for about a year now i've been in need of a project, i decided (after my wife told me to) to dig up the sub and start in on it.

    we pulled it out of the corner of my dad's backyard where it's sat for 6 years. it was a good feeling climbing back into it and check it over to get reacquainted with it. it's sitting behind the house now, i got some plywood to put underneath it to have a solid floor to work on and yank the engine.









    took about 5hrs to pull the engine, i forgot how damn simple these trucks were.


    ugly old boat anchor


    got rid of the old swampers and bought some 37" H1 hummer takeoffs from 100dollarman.com in So CA.






    once it was rolling i could trailer it over to my house to start cleaning it up and working on getting it ready for a new engine, etc...


    pulled it behind my best friend's new duramax, awesome truck!


    got her home and gave her a bath, i think it might have looked better before haha!


    i pulled the fuel tank, transmission, transfer case, radiator, sway bar, oil cooler, a/c condenser, a bunch of useless wiring, bumpers, etc...






    pulled the seats and cleaned up the interior. ive got some small parts here and there coming for it but it doesn't need much.




    the back seat makes a nice addition to the "redneck lounge" as my neighbor calls it.
    Trailhound Smokers, Competition BBQ team. Las Vegas, NV.
    1989 GMC Suburban, under construction. getting a new engine, 1 tons, 37s, etc...

  2. #2
    Join Date
    Jun 2011
    Location
    Henderson, NV, USA
    Posts
    64
    so as it sits, its on 4" springs and Hill 4WD shackles in the front, 4" blocks in the rear and a 2" body lift. plans are to add a zero rate to all 4 corners, pushing the front axle forward 1", ditch the blocks for a shackle flip and ditch the body lift all together. ill trim the fenders a little more and keep it as low as i can.

    the old engine is junk, i'm replacing it with a 5.3L from BD Turnkey Engine Supply in Reno NV. http://pirate4x4.com/forum/showthread.php?t=1012735

    the TH400 trans will get rebuilt with some goodies in it, maybe a reverse manual valve body and a deeper pan. i'd love to use something with OD but i dont want to get stuck in a never ending state of building my truck, so for now at least, i'm gonna run what ive got.

    the NP241 will get an SYE kit, some new seals, and a clocking ring to set it up as flat as i can get it.

    the rear axle is a 14 bolt full floater with a detroit locker in it, slightly shaved. it'll end up getting a set of disc brakes, 4.56s, a deeper shave and nice cover like this. http://pirate4x4.com/forum/showthread.php?t=1013016

    the front axle is a 10 bolt, i'll repack the bearings and not spend any money on it as i plan to replace it with a Dana 60.

    interior plans are a sleeping platform for storage underneath and never but the back seat back in. i'll hinge mount some tables on the back doors for kitchen use. mount up my CB and figure something out for spare tire locating.

    eventually it'll get new bumpers, a winch, sliders, and a roof rack with some lights.
    Trailhound Smokers, Competition BBQ team. Las Vegas, NV.
    1989 GMC Suburban, under construction. getting a new engine, 1 tons, 37s, etc...

  3. #3
    Join Date
    Jun 2011
    Location
    Henderson, NV, USA
    Posts
    64
    Here she is as of right now.
    Trailhound Smokers, Competition BBQ team. Las Vegas, NV.
    1989 GMC Suburban, under construction. getting a new engine, 1 tons, 37s, etc...

  4. #4
    Join Date
    Apr 2011
    Location
    Arizona
    Posts
    363
    Wow great start! Tuned in.

  5. #5
    Join Date
    May 2008
    Location
    central wv
    Posts
    677
    i think that you'll really like the 5.3. i've got that motor in my tahoe and love it. smooth consistant power. from about 2500 rpmand up the 5.3 really pulls. still impresses me at 149k.
    2004 toyota sequoia, to keep the wife happy

    2000 chevy tahoe NBS, 5.3, keys & spacers, bilstein 5100's, 285 AT's

    1989 4-runner; 3" BL, 255/85 bighorns on '09 taco steelies, 5.29's, rear spool, cobra 25, hella 500's w/more to come

    1995 geo tracker, leveled, 31" GY MTR's, no top.

  6. #6
    Join Date
    Jan 2010
    Location
    orland park, IL
    Posts
    242
    I like it, I'm about done with my 5.3L swap, can't wait to drive it.
    1988 suburban 2500 on 1 ton axles, diy4x shackle flip, sky engineering crossover steer, 35" tires on H2 rims, 2005 5.3L swap, th400/208, 4.11s
    build thread: http://www.expeditionportal.com/foru...burban-buildup

  7. #7
    Fun build - love the old burbs! Can't wait to see the 5.3 install!

  8. #8
    Join Date
    Jun 2011
    Location
    Henderson, NV, USA
    Posts
    64
    thanks guys! while i'm waiting on the engine i've started drawing up my roof rack and sliders. my best friend is a fabricator and offered to build anything i want for it, i'm gonna help and learn as much as i can along the way. for the roof rack i'm thinking 4'x8'x6" hard mounted to the roof the way GM did back in the 80s. ive been looking around at racks on here collecting ideas, hopefully i'll be able to start building something soon.

    i drained both differentials today, the last fluids left in the truck. the rear was pretty damn clean, it's only got maybe 10k miles on it, i swapped it in about a year before i parked the truck. the front however, not so much. the front axle had some water in it, for at least 6yrs. when you turn the pinion you get a nice crunching sound. i didnt want to spend any money on this axle as i plan on swapping for a dana 60. this just backed up that decision.
    pics to come soon.
    Trailhound Smokers, Competition BBQ team. Las Vegas, NV.
    1989 GMC Suburban, under construction. getting a new engine, 1 tons, 37s, etc...

  9. #9
    Join Date
    Jun 2011
    Location
    Henderson, NV, USA
    Posts
    64
    Front diff. Nasty.
    Trailhound Smokers, Competition BBQ team. Las Vegas, NV.
    1989 GMC Suburban, under construction. getting a new engine, 1 tons, 37s, etc...

  10. #10
    Join Date
    Jun 2011
    Location
    Northwest Colorado
    Posts
    692
    It'll buff out.
    1993 F350 Crew Cab Long Bed 7.3 IDI 5 speed 4x4. Currently stock except for the 255/85R16's.
    1983 GMC 6.2L Suburban with sm465/np205 undergoing construtive surgery to include 1 ton axles, crossover steering, 52" front springs, and rear shackle flip. Has 285/70r17 STT's on H2 rims.
    Both running biodiesel.
    2007 Subaru Outback 2.5i with 5-speed manual.
    1965 2WD F100 7.5L with C6.
    1967 mustang coupe project on hold waiting for a garage or shop.
    1979 CX500 putt arounder.

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