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    were factory frames galvanized?

    Self explanatory title. :) I know chevy has used hot dipped galvanized frames at some point but I don't know if it's newer trucks or when they started or etc. Curious about both the 73-87 and 88-99 chassis separately if anyone knows, one might be and the other not too.
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    10/12 bolt pass car R&P in truck housing?

    Is it possible to put passenger car ring'n'pinions into the truck housing (even if it's with shims or something) or is the passenger car 12 bolt a completely different animal? EDIT: Expanded to include 10 bolts... are there any of the 10 bolt passenger car ring'n'pinions that will work in the...
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    building for different types of offroading

    Because the main offroading i've ever done so far was going places I needed to for work (so you guys go out and get stuck?? for FUN??? :) ) and trying not to get stuck, I don't have much knowledge that's probably common to everyone else in this board. :) My biggest interest at the moment is...
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    a modern column shift for a 5 speed??

    This is probably not that feasible but I thought i'd throw it out there... Is there any way to hook up an old style column shifter to work some more modern manual transmission like an nv4500 or even nv5600? I'm guessing they aren't made for it at all i'm just curious if anyone has ever...
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    Tire size limits WITHOUT lifting? (flares ok)

    What are the biggest tires I could put on a 3/4 ton chassis, even if it means some modifications to the inner or outer fenders and possibly some steering scrub at the extremes? NOT only "off road" tires either, is as curious about larger diameter on road tires closer to medium duty size...
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    3/4 vs 1 ton differences & upping GAWR?

    What are the differences between heavy duty 3/4 tons and the 1 ton pickups? And is there any reason you can't just swap parts over to up the cargo capacity for instance? Like if I stuck 1 ton parts under a 3/4 ton suburban could I haul even more weight in the back? I had thought I read the...
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    Coefficient of drag??

    Probably a wierd question for something so bricklike BUT i'm wondering if anyone has ever heard a figure, ever, or even an idea of what it might be. :) I read somewhere that the square body was actually one of the first intentionally aerodynamic pickup designs, possibly assisted by computers...
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    list of axle ratio options? (esp in 3/4 and 1 ton)

    I'm curious what is out there for swapping options... I'm aware there were GM 12 bolts with all the way to 2.29 ratios, even in the pickup trucks I *think* for the 1/2 ton, but i'm especially curious if there were any 2-series ratios available in 3/4 ton or 1 ton axles especially in 4x4...
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    mods for LONG LIFE (ie a rustfree chassis for decades??)

    I posted my introductory post if you want to read it http://www.gmsquarebody.com/forum/showthread.php?p=236154#post236154 but the super-brief version is that I hope to rebuild a truck or/and Suburban to literally last for decades/the rest of my natural life. Maybe I just don't like change, or...
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    Hi i'm new here - previous SB owner wants to be again

    Howdy, actually my third post because first two were off the top of my head questions of specific information I was looking for. If anyone wants to suggest other great sites for discussing these trucks (either in combination with other trucks, or other GM, or just these models) please share...
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    IH DT360/DT466 feasibility?

    Has anyone ever done this swap or looked into the feasibility of it? The international harvester 'DT' (and later HT) lines of engines, most commonly seen in school busses and medium duties, most commonly in sizes of 360 or 466 CID although other sizes exist. What I can find about this engine...
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    88-91 Suburban welcome here? Differences?

    Just curious on something... i'm aware this is sorta 73-87 'square bodies' but they used the same chassis (with a new grille) on the suburbans up until 1991 according to every reference I can find. :) I'm just curious what notable differences there are vs a 1987 model if anyone knows...

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