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  1. Grit dog

    Questions about... My rear end?

    Both will require shock mount and spring mounts I believe. Assuming both are known good axles. And Chevy didn’t make 14bolts in 1968 afaik. Bigger questions are gearing and how your gonna match the front axle so you don’t have an average of a 7 lug truck.
  2. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    Tires with too much flex certainly would allow the tail to wag the dog more. You’re correct. I’m just not seeing it in this scenario. Not that it’s not possible or contributing. But the OP did not complain of the trailer swaying/wiggling. Plus he’s using a wdh with sway control. Should track...
  3. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    The speculation in this thread has turned into a bit of a mess. I’d say do this. 1. Front end alignment. Specifically caster. 2. Figure out your actual rear axle weight loaded. Then you can confirm or deny tire load rating. And you can test higher pressures for a practical verification...
  4. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    That’s cool! Also I was replying to @AuroraGirl post about her truck and tire issues or whatever.
  5. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    Possibly. Although I’m not seeing 5klbs on the rear axle without the OP explaining why he’s using airbags to that extent or at all. Nor am I seeing it possible to have anywhere near enough weight in the rear axle especially if the wdh is pulling any weight off. Those bags at 60psi will jack the...
  6. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    As all is tight and new according to you, you may not have enough caster in the front end. Less caster = twitchy. Too much caster = heavy steering but tracks very straight. (Sort of. Not the full description). Seeing how you redid everything on the front, maybe caster angle is shy of what’s...
  7. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    He never mentioned trailer sway although good point/reminder. Easiest way to correct trailer sway typically from not enough tongue weight (which is not the Ops issue) is applying trailer brakes while accelerating.
  8. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    The definitive solution here is a decent set of tires. And maybe some front end work. Not sure how this relates to a totally restored squarebody and a trailer.
  9. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    To that point, the best rotation is the one that keeps the treadwear even. Which barring alignment issues or correcting uneven tread depth is typically straight front to back. Because front tires feather or cup one direction and rear tires the other direction. X pattern doesn’t correct...
  10. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    Easy to test the necessity of that before buying new wheels and tires.
  11. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    I was talking air bag pressure. But yes if you’re running 50psi or more in the rear tires of and empty pickup truck that is fine other than way more than needed. Rides rougher and worse traction. Look up a load pressure charts for your size tires and compare to the 2500/3klbs rear axle weight...
  12. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    Based on your posts after this, idk if the steering has anything to do with the trailer. But assuming you know your tongue weight which seems you do, I cannot begin to understand how you can need 60psi in the bags. Or even 1psi. Unless you have 20 sacks of concrete in the back of the burb...
  13. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    Huh?
  14. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    Ok, them are a little softer than I imagined. But not necessarily the issue.
  15. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    While it’s possible the tires are a contributing factor, first off you didn’t mention trailer sway or wiggle which is where some of the responses are leading. But your numbers above don’t make sense at all unless you have a VERY nose heavy trailer. If you need 60psi in the bags on top of 3/4 ton...
  16. Grit dog

    Twitchy steering with a big travel trailer (rear sway bar help?)

    Actually the opposite. The shorter the sidewall the less load capacity all else being equal.
  17. Grit dog

    Reverse light options

    Except that doesn’t work for the OP as stated.
  18. Grit dog

    Vent Window rubber replacement or replace?

    Also not something you want to rattle can if you’re going thru the rest of the process and looking for a long term finish.
  19. Grit dog

    Vent Window rubber replacement or replace?

    Even the prep and paint took me several hours. It doesn’t seem like much but it’s a bunch of little detail sanding and masking and several “coats” of primer paint etc at 1/4 once each time. Plus if the one stud is broke you need a new frame with stud and bed that onto the glass. None of this is...
  20. Grit dog

    Vent Window rubber replacement or replace?

    ^ Agreed, you’ll pay the shop much more than buying new ones. Plus if the pivot is busted on one, imagine they may also need latches and ?? Time spent disassembling, prepping painting the frames and install of new gaskets and hardware is considerable. I “rebuilt” a set on the 86. Only cost me...
  21. Grit dog

    Drop 4x4?

    Steps,running boards or nerf bars?
  22. Grit dog

    Do I even need a gas tank vent tube?

    Thanks for posting the solution. It’s prompting me to look at my 77 now. The aftermarket saddle tank actually fill a little easier than the factory one. Wonder if the vent tube is collapsed? Any of the vapor recovery style pump nozzles also absolutely suck for filling old school vehicles in...
  23. Grit dog

    battery junction Block issue ( see photos)

    LMC must be shopping at Temu now…. Seems virtually impossible what you said but you checked continuity on it. But it’s just a junction block. A convenient place to terminate connections. You can use any j block or bolt the 2 eyelets together and wrap in duct tape. Will function the same.
  24. Grit dog

    is this a Frankentruck?

    Look up your truck on https://www.gm.com/heritage/archive/vehicle-information-kits. You will be able to tell what it originally had. Nest to know but largely inapplicable. You have a different engine, trans and t case than came with the truck. Not a big deal as squares had a lot of...
  25. Grit dog

    Which dually - 8.1 vs pre-DEF 6.6?

    The era of Duramax he’s contemplating is as easy as plug in, instant tune. Unplug before emissions. Almost Instant compliant. Not an issue.

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