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See my replies above to Dolko. I'm talking about payload, not towing. If a 5.7 Hemi has enough power to motivate a 12000 lbs load behind the hitch, why should payload be a factor?

Yes, but not nearly as much work as towing at max GCWR. The 5.7's GCWR is the max mass the 5.7 powertrain is rated to move. Which is lower than the 6.4's or Cummins' GCWR. See above - no surprise the 6.4 is rated to TOW more. By that line of reasoning - shouldn't the Cummins have the highest...

I can totally see how the 5.7 Hemi can cause a reduction in towing capacity - it generates less tractive effort than the 6.4 at any given road speed. But how does that limit payload!? The engine and transmission itself can't tell if they're towing or hauling a load. If a 5.7 can tow 10k lbs...

Well, since the OEM engineers are the ones speccing it, it's hard to prove they "falsify" something. However, many OEM ratings are strictly marketing driven. Case in point: how does a Ram HD with 6.4 have a much higher payload (and GVW) than a 5.7 variant? The frame, axles, brakes, are...

Well, make that 3 if you count me! One thing for sure - it's NOT a throw-away like the Chinese twins or even big singles (MV90). I have the Puma, a set of Viair 480s, a Viair 300P, Viair 440P, dinky Viair 85P, and a Chinese twin. The Chinese twin lasted 2 trips with my old 100 Series, 33s from...

This site talks about GVW (our GVWR) upgrades on a Hilux, and the increased rear GAWR is - 2065 kgs, or 4,543 lbs, holy crap! http://www.statewide4x4.com.au/gvm-products/toyota-hilux-150-series-4x2-gvm-upgrade.aspx Interesting how they didn't upgrade ANY internal axle component, kind of shows...

Don't know how accurate this guy's source is, but he claims a rear axle capacity of 1600 kgs (3520 lbs) on a Hilux: https://www.pradopoint.com.au/forum/general/general-discussion/14438-hilux-safety-alert-prado-next?p=300241#post300241 That's higher than Tacoma's 3110 lbs. If they're in fact...

There was ONE model year where the 2500 still used the old weaker frame, and the 3500s moved onto the new 50ksi frame - 2013. Starting in 2014: http://news.pickuptrucks.com/2013/09/2014-ram-hd-2500-3500-first-drive.html "All 2500s get the new, higher-strength steel frames the 3500 duallys got...

Without turning this into a C-channel vs boxed frame, there're MANY parameters that Class 4+ truck frame has that enables them to carry the load: - Much higher tensile strength steel: Volvo uses 130,000 psi - Much thicker steel, we're talking a 1/4" and beyond - Much higher section modulus...

Except the Aisin equipped trucks, all duallies are 11.5" AAM. Obviously they have a hub adapter at the end to utilize dually wheels, but if anything, that makes the housing WEAKER, not stronger.

What I meant is GAWRs already have dynamic load leeway built into them; no need for additional leeway by artificially chopping GVWR. We can talk about frame limitation, chassis dynamics, etc. But until an OEM engineer show me hard proof, I'll keep on referencing back to the Power Wagon: It has...

If that was the case, then why does EVERY commercial truck have a GVW = sum of GAWRs? I'm talking every Peterbilt, Volvo tractor, dump truck, cement mixer, mobile crane, tour coach, you name it. In fact, if you look up a say, a Kenworth T880 manual, it doesn't even list a GVWR. All you have are...

That's a VERY good point that I've brought up in depth in an older thread. To quote: "Keep in mind if we go by hard technical specs, just about every mod we do renders the legal GVWRs and GAWRs useless: Bigger tires and or wrong wheel offset? Boom, there goes your axle rating, as it could...

You wearing your panties a bit tight...

Is the rear axle on a Hilux rated higher? I know the article said they're physically the same. A Taco's rear GAWR is 3110 lbs. The way a crew cab Hilux is proportioned, the entire payload would behind the rear axle. That would mean the empty rear axle weight is under 1100 lbs, which is...

Easy... No one is implying the LC is a bad / inadequately built truck. In fact, we all know it's a tank, with legendary reliability (hence why I owned one). And in some ways, certain components (rear axle) are indeed beefier than my Ram 1/2 ton. Just that "overbuilt" gets thrown around too...

I don't think he was referring to the PW as 1/2 ton; he was saying I compared a LC (1/2 ton), to a PW (3/4 ton). And yes, to echo what you just said - all domestic 3/4 ton and 1 ton share the same frame, and in most cases axles as well. I feel a lot of 3/4 tons have artificially low GVWRs...

Interesting - I wonder how a Hilux gets away with 2000 lbs of payload on a crew cab super short bed? Is the Taco rear axle that under-rated (a la Power Wagon)?

No I wasn't, I'm comparing their relative "over-builtness". The PW has a GVWR of 8510 lbs, but uses the frame and drive train from a truck with 14,500 lbs GVWR. My old LX470 had a GVWR of 6860 lbs. But the same ratio, it should have axles and a frame from a 11,689 lbs mini-Hino. I could be...

I feel being a Toyota, that's not too many miles at all. With proper care, you can probably enjoy another 100k miles of adventures. It depends on the goal of your build - if you're building it for yourself, your own enjoyment, then go for it. But if you're building it as a show truck expecting...