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  1. mpyusko

    JD7 brake boster needed

    I have a 1996 K2500 (454) with JD7 brakes. I'm having a hard time finding a new Hydraboost Brake boster. Everyone wants to sell me JB8 (10,000 lbs) when I have JD7 (8,000 lbs). Nobody seems to list one for JD7. I'm starting to go cross-eyed looking through all these sites and cross-references...
  2. mpyusko

    Changing the fluid in my 14-bolt.

    Found this stuck to my magnet (3/8" ratchet for scale). Bearing cage? Normal? Everything looks good. No unusual wear on my ring gear. 4.10's, limited slip. ~290,000 miles. Never changed the fluid in the ~9.5 years I've owned it. Constructive thoughts appreciated.
  3. mpyusko

    Power Steering "weak".

    Ok.... #1, I think hydraboost is the dumbest thing ever. It runs off the P/S so if your P/S dies, or you throw a belt, or you have a low idle, you can't steer and you can't stop. At least with vacuum assist you could still stop. Anyway... I've owned this truck for over 9 years and it's like...
  4. mpyusko

    My speedometer is a little off...

    Seriously though... How can I fix this? I was in Ohio doing 70 on the interstate when I took this photo. The VSS is reading correctly.
  5. mpyusko

    Rear coolant leak

    So I've seen a ton of posts about what to do when the quick-connect is leaking. But mine appears to be coming from the line. https://cerebro.d2dint.com/s/GPLMsr47W8RLEkD (video) Any idea where I can get replacement lines from? The usual parts suppliers don't seem to have them.
  6. mpyusko

    Proportional Brake Controller

    I do a fair amount of towing and usually it's between 3,000 to 12,000 lbs. My truck came with a brake controller in it, but it's a time-delay type and obnoxious when you like you brake smooth, but it always wants to stop quick, so you wind up pulsing the pedal. I'm looking for a decent...
  7. mpyusko

    O2 Sensor issues

    Normally this isn't a problem day-to-day.... Whenever I am towing a heavy (3,000 lb+ load) my foot stays into the pedal a bit more. So when climbing hills or accelerating to highway speed, the RPMs stay up higher for a longer time. With almost a predictable timing, these 2 fault codes will...
  8. mpyusko

    What happens at 3500 RPM?

    I get a power surge. It almost feels like a downshift, but it's not.
  9. mpyusko

    Unstable Idle, especially when cold

    '96 Vortec 7400, 50,000 miles (low mileage, 5 year old create engine) I'm having an issue where the truck has been hard to start (especially when wet, but dry too) and a screwy idle. When it is idling, either at rest or driving, it will run smooth for several seconds and then dip low (200 -...
  10. mpyusko

    Wipers with a mind of their own!

    When I go to use my wipers it is a crap-shoot. Some times they'll work perfectly, other times they might not shut off for several minutes. I have intermittent wipers on a 1996 suburban. The wipers will always turn on, but may not turn off. Wipers on any speed except high: low speed -...
  11. mpyusko

    Bottom end shot. Rebuild, replace, or ....

    I have a '96 L29 in my K2500 Suburban. The bottom end is shot. I am thinking of pulling it to do a rebild, but the crank and rods will need to be machined. I just did a teardown on my Jeep motor and I'm really not in the mood for this 1,000 lb monster, but ya gotta do what ya gotta do...
  12. mpyusko

    Towing.... Stuff.... A long way.

    So as you can see in my profile I have a decent truck. Relatively low miles considering.... 185,000, its a 1996 K2500 Suburban with a 454, 4L80E, factory tow package, etc. Pretty much stock except the tires and rims. A friend of mine is moving from upstate NY to VA and he needs my help. I'll...
  13. mpyusko

    Parasitic draw..... maybe not?

    I'm facing what appears to be a parasitic draw. After my rig sits for only a few days (like 3 or 4) the battery is dead. At first I thought it was the battery, but I replaced it with a brand new 1000 CA. I should have plenty of power, but it still dies. Later I was camping (away from the...
  14. mpyusko

    A/C system overhaul - Question on diagram.

    I have a 1996 K2500 Suburban with the 7.4. It has both front and rear A/C. I know the front hoses are leaking and everything else is fine. I haven't spent much time under it yet, but as I'm pricing out parts (so I know how much it costs before I break it LOL). I saw a couple parts in...
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