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  1. 1998Suburban

    Head or Lower Intake Gasket?

    After installation you may have to do a crank variation learn procedure. I forget the DTC # that pops up but basically the crank sensor and the cam sensor in the new distributor need to be in sync.
  2. 1998Suburban

    Think I have a worn ring and pinion...

    Found it. http://www.astrosafari.com/viewtopic.php?f=108&t=4572
  3. 1998Suburban

    Think I have a worn ring and pinion...

    Pull the rear diff cover & have a look around, specifically for metal. Bad carrier bearings whine all the time, excess runout in the ring gear tends to howl between coast & drive (no gas & a lot of gas). There's a guy who did a how to rebuild the rear end in his Astro van with 200K+ miles and...
  4. 1998Suburban

    Need new np246 TC

    New rear case half, updated oil pump, or both?
  5. 1998Suburban

    Gauge cluster adjustment??

    You can see that all the gauges except for the system voltage have 2 known positions so checking calibration is pretty straightforward. I have yet to see a cluster come in that doesn't have any issues whatsoever.
  6. 1998Suburban

    Gauge cluster adjustment??

    70mph test:
  7. 1998Suburban

    Gauge cluster adjustment??

    Not sure where you can get another one. But it does work well. Here's the 0mph test on a standard cluster.
  8. 1998Suburban

    erratic gas gauge

    Here are a few pics of a cluster being tested. I check functionality on them all and repair as needed. For whatever reason I have yet to see a Yukon Denali/Escalade cluster come in with a working gas gauge. Here are the after shots. Denali:
  9. 1998Suburban

    erratic gas gauge

    I have a source for them but it isn't an inexhaustible supply.
  10. 1998Suburban

    Need new np246 TC

    $1500 is in the ballpark. I was quoted $1600 by a reputable trans builder but ended up rebuilding my own for $600 or so. If you do tackle a rebuild you'll need a j-44295 clutch pack setup tool (picked mine up on ebay). If you want a turnkey solution I'd stop at the local trans shop (Mr...
  11. 1998Suburban

    erratic gas gauge

    A bouncing/erratic gas gauge is one of the biggest problems in these clusters. I replace a lot of them when I recondition the clusters.
  12. 1998Suburban

    How to Rebuild the Front Suspension on your 1997-1999 OBS 4X4: Step by Step

    The only HD parts I used were the snow plow prep torsion bars (959/960) and yes, they were a direct fit. The LCAs are the stamped arms, not fully forged
  13. 1998Suburban

    Gauge cluster adjustment??

    I have an instrument cluster tester for the OBS gauges and sell reconditioned ones. As SunlitComet mentioned the tester gives 2 known positions for fuel gauge, oil press, and temp. System voltage is only one position and the tach/speedometer can be adjusted via a pot.
  14. 1998Suburban

    Thinking of buying a 2000 Escalade

    Did you ever pick this one up? The intake gaskets will need to be replaced unless it already had the steel core Problem Solver gaskets installed. Without the case saver installed on the oil pump in the 246 transfer case will start to leak. The pumps eat a small hole in the back half of the...
  15. 1998Suburban

    How to Rebuild the Front Suspension on your 1997-1999 OBS 4X4: Step by Step

    Cool! That will make it an easy to find resource for others needing to do the same project.
  16. 1998Suburban

    How to Rebuild the Front Suspension on your 1997-1999 OBS 4X4: Step by Step

    Hmm.. I'm not sure why you can't see the pics. I put them in Photobucket and the album is public. I can still see them after I log out. Maybe site admin can take a look and figure out what's going on?
  17. 1998Suburban

    How to Rebuild the Front Suspension on your 1997-1999 OBS 4X4: Step by Step

    Remove the 21MM nuts/bolts and remove the upper control arm. Remove the lower jounce bumper if you're replacing it. At this point the front suspension has been completely stripped and you're down to the bare frame: After some additional cleanup and a coat of POR-15: If the frame knock outs...
  18. 1998Suburban

    How to Rebuild the Front Suspension on your 1997-1999 OBS 4X4: Step by Step

    Using the pickle forks and sledge hammer pop the ball joints loose. Before removing the nuts you need to relieve the tension on the torsion bars. The GM torsion bar tension adjusting tool (27278) fits in a dimple on the cross member and sits in the inner dimple of the torsion bar key. Tighten...
  19. 1998Suburban

    How to Rebuild the Front Suspension on your 1997-1999 OBS 4X4: Step by Step

    Now it's time to tear into my front suspension. A cursory look at the front suspension shows why I wanted to get rust-free control arms. The uppers don't look good: And the lowers are just as bad: If you aren't using air tools I'd break the 36MM CV axle nuts loose prior to lifting the...
  20. 1998Suburban

    How to Rebuild the Front Suspension on your 1997-1999 OBS 4X4: Step by Step

    After 18 years and 177K miles the front suspension on my '98 K1500 Suburban was starting to hurt. She wandered on the interstate and I found myself aiming in a general direction as opposed to actually steering her. I looked for a good rebuild thread but couldn't find an all-in-one that...
  21. 1998Suburban

    1998 K1500 Front Suspension Rebuild: Z height?

    Thanks for the .pdf. I assume D height is the reference for the rear suspension? Yes, I did everything. I harvested rust-free UCAs/LCAs at the jy along with all the fasteners & HD torsion bars and replaced the ball joints and bushings, then gave them a coat of POR-15 for good measure. I...
  22. 1998Suburban

    1998 K1500 Front Suspension Rebuild: Z height?

    I just finished rebuilding the front end in my '98 K1500 Suburban and want to set the ride height (z height) correctly prior to getting her aligned. I found the torsion bar 101 tech thread and it was useful as I found the info to upgrade to the 959/960 torsion bars. I tried setting Z height as...
  23. 1998Suburban

    Upgrading to Snow Plow Prep Package Torsion Bars

    The Lower control arm bushings on my '98 are on their way out and the arms are fairly rusty (truck lived up north at some point in time) so I hit the junkyard yesterday to look for a fresh set of LCAs to work with. I stripped most of the of the front suspension off another '98 and found that it...
  24. 1998Suburban

    Cats r cut off. How to create dummy o2 sensor.

    How about an oxygen sensor simulator? Would keep the PCM happy: http://www.afterthoughtsauto.com/o2sim.html
  25. 1998Suburban

    Replacing all the steel brake lines questions

    I've never seen a brake line rust from the inside out. Exhaust systems do this b/c of the moisture that's a byproduct of combustion. If grabbing a set of lines to use as patterns works for you that's fine. Just remember to transfer the flare nuts as they're non standard.

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