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  1. Tavi

    What is "Bad" MPG for a '94 5.7L ?

    The same thing could be said about horsepower.
  2. Tavi

    Rear end drop when accelerating

    Yes. Very likely the cross shaft mentioned in previous posts.
  3. Tavi

    89 c2500 lift question

    This is as I understand it. I was just clarifying because the OP never stated whether he is 6 or 8 lug.
  4. Tavi

    Steering issue

    It could be your bushing. Which there are 8. Two each control are. But the culprit is more likely tie rods or ball joints.
  5. Tavi

    89 c2500 lift question

    This is only true for 6 lug 2500s. 8 lug will match 3500s.
  6. Tavi

    Hydroboost question

    I believe there is a very long list of thing people wonder why GM didn’t make factory.
  7. Tavi

    Crate engine vs rebuilding opinions?

    Crate motors are great for stock replacement and quick turn around. Taking your current engine to a machine shop is good if you have specific power goals or build criteria in mind. Or just wish to support local small businesses. Personally I take all of mine to machine shops to rebuild.
  8. Tavi

    gstubbz's trucks

    I’ll second that motion. 6.0 and 5.3 use the same crank and connecting rods. Pistons are different. I’m sure you can find a stock 5.3 rotating assembly for cheap.
  9. Tavi

    When my GMT400 isn't enough...

    The number one problem with the TBI big block is low compression. Rated at 8.5. Some have measured out to as low as 7.5. GM did this to combat NOX emissions. Number two problem is the tiny cam GM installed. Again, to combat emissions. Next is the restrictive exhaust. GM just being lazy. The...
  10. Tavi

    Loose gear box

    Not difficult. A bit time consuming. 3 box to frame bolts, pitman arm bolt, steering shaft and two fluid lines. With the gear box out pitman arm is easy to remove. A bit tight while in the truck. Rag joint can make a big difference. Mine touches the mechanical interference of the rag joint...
  11. Tavi

    77Conours's 1997 RCLB Build Thread

    The KO2 are hands down my favorite tire. Have them on both my GMT800 Suburban and my Cruze. Suburban will be getting its second set soon 75k miles on them. Will put them on the dually when it needs tires. Never been stuck in either the Suburban or Cruze where the dually got stuck with Toyo open...
  12. Tavi

    What have you towed lately

    Transported a new donor.
  13. Tavi

    Fifth Wheel Hitch Help

    I have no personal experience with a goosebox but have heard they are an improvement over the standard convert a ball. I agree though. It is still moving the pivot point the manufacturer intended.
  14. Tavi

    Fifth Wheel Hitch Help

    The added stress of the gooseneck adapter is caused by extending the pivot point of the coupling. It’s like adding a cheater bar to the trailer frame. Many fifth wheel manufacturers were voiding warranty’s if an adapter is used.
  15. Tavi

    6.0 into 2000 k2500

    If I remember correctly, something was changed on the passenger side tube to accommodate the duramax oil pan. It might have been mounting locations or the actuator location. But the gears and carrier for sure will interchange. Since you will have to remove it to change gears. Might as well...
  16. Tavi

    Rear main seal leak

    Depends on your mechanical abilities. The engine and transmission will need to be separated. And the flexplate/flywheel removed. It’s a 1 piece. So it should remove from the rear. Not needing to remove the oil pan and rear main cap.
  17. Tavi

    Adapters

    Specific question with vague details. No personal experience with either of the questions you posed. But since no one who has experience with either hasn’t posted yet I’ll give some generic insight. Wheel adapters are very close in design and function as a wheel spacer, just the different...
  18. Tavi

    1994 Blazer chassis swap

    No. Different frame architecture. Different wheel base. Blazer is 111 RCSB is 117
  19. Tavi

    My 99 vortec 5.7 STINKS, has a subtle miss but no Codes or CEL

    I would hazard a guess that the misfire/excess Fuel in the system is what caused the cat to fail if it has. And I’m not sure it’s a matter of nobody wanting to talk about the inaccuracy; but more a matter of ignorance. So thank you for the insight. From my experience, the arc will not cause...
  20. Tavi

    My 99 vortec 5.7 STINKS, has a subtle miss but no Codes or CEL

    Yes. They usually start working around 400 degrees. But I would suspect it’s just a symptom, not a cause.
  21. Tavi

    drive shaft carrier bearing

    My K3500 extended cab has a carrier bearing.
  22. Tavi

    Must Soften Suspension

    You could also remove a few leafs from your leaf packs and make up the difference with some helper air springs.
  23. Tavi

    Dually conversion

    The rear axle WMS-WMS is different, DRW is 72” and SRW is 67. The spring mounting pad location is identical for the two. Cab & Chassis axles are different all together for both SRW & DRW. So I would just grab the entire rear axle from a junk yard. The front axle just uses a large spacer to...
  24. Tavi

    G80 swap questions.

    I understand the reasoning. I considered one years ago for my Nova when I was building it. After extensive research and talking to people, it ends up not being that cheap. I did forget to mention the frame twisting that also occurs. Spools are best left to vehicles towed to the track or trail...
  25. Tavi

    G80 swap questions.

    The G80 (Eaton MLocker) isn’t a horrible design in stock driving. There are a few who have claimed to have blown them up while babying their truck. Wasn’t there, don’t know the history. The flaw of the design is it is triggered by wheel spin, then suddenly locking. Knowing Newton’s laws explains...

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