That's ok Kona....guess I should have slipped you a half dozen cards....but I didn't think about that.

Hey, if you think that shackle is slamming that bumper bracket on big bumps then feel free to stop over and I can torch enough material to clear and not effect bracket strength too much. You seem to do a ton of driving around town.....a bet the smooth ride is welcome. <img src="/forums/images/graemlins/cheers.gif" alt="" /> ZUK

Well dad gum, I think I'm gonna have to do this. Hey Zuk, you think you might just build brackets and let folks source the springs themselves?

This would mean I could get rid of the block I have under my Chevies.

I'd still be interested in whether the spring needs to be captured. With my long rear springs I get a LOT of droop...

Here's another thought...

what does raising/lowering the rear do to caster? Or more specifically, the relationship of the front axle to the street, as far as angle goes..

Justa thought...

Work out the math and you can find out. Just take the rear end lift height divided by the wheel base and take the inverse tangent of that ratio, so for a 1" lift on a SWB truck:

InvTan(1/103) = ~1/2 degree change in the front end caster angle.

I'm working on a variation of the center spring idea with a tapered air bag. The idea is to inflate it to restore ride height with heavy loads then deflate it for empty use.

Yea I would think the single spring system would be better for hard core wheelers. The spring wouldn't see a lot of compression or droop when flexxed like the 2 spring design. Might actually make articulation better.

I like the single spring idea better as well, plus I have a few TJ springs left over from lifting my dadÆs Jeep. My new 5" superlift rear springs now lift only 3 1/2" so this would be a big help. Would the rear axle housing be strong enough to weld just a mount on top instead of welding a truss across the top of the housing? Also as a thought, the ACOS adjustable coil spacer would be nice to mount at the top if you could only get just one of them instead of a pair. That way, you could fine tune the rear end.

that's a possibility....I'll have to see.
Your rear has been modified....you no longer have the stock rubber snubber...the brackets wouldn't work in your case without some mods.


Jeff---as for the castor, you might be over tinkin it too much. I'd be more concerned about the angle change in the vortex winds that swirl up and over the cab at highway speeds.

Adam---would the axle be strong enough?...quite possibly.....but I wasn't willing to risk it. Besides, I figured a chunk of steel across the top would give it a beefy burly look.
Both the center and the duals are "interesting" ways to lift/share loads.....for the stocker rear suspension guys, I would think the duals would be extra appealing....the fabbing is alot less. Lord knows there's hardly a stock Runner out there that doesn't sag. <img src="/forums/images/graemlins/cheers.gif" alt="" />

[quote ]
Your rear has been modified....you no longer have the stock rubber snubber...the brackets wouldn't work in your case without some mods.
[/quote]

I actually do have the bumper, Just not on the truck.

$60 pair of gabriel hyjacker airshox at autozone
looks a world of a lot easier to me
but i still have the wunnerful wunnerful stock leaf springs, modified
which just cannot go 20mph over 10mph whoops like on tv
without snapping

The only problem with the airshocks, you're relying on your shock mounts to hold the weight of the truck. Not really a problem if you're not carrying anything, but if it's loaded, I personally wouldn't trust it.
What's nice about this setup is your extra weight is loaded directly from the frame to the axle (and therefore tires), so there's no possibility of bending of any mounts.
Just MHO.
Todd <img src="/forums/images/graemlins/cyclops.gif" alt="" />