Solid Axle Swap BS Thread

Gotcha.... Thanks for your help, man.

haha yeah, I love that build! And I think you're right now..... Panhards are just fine for crawling. I think the main reason 4runner guy went with a Watt's link, is because he ALSO does the high speed long travel stuff. He needs that rear axle to track straight up and down!

SAC and SAS in a lot of cases with our trucks. Can't forget the rear!

 

So Silas, did you get some answers?

And we need some questions, I am bored, Cmon peoples

 

Seems like all the forums are pretty slow right now, TTORA seems kinda dead right now.

Does anyone here know what the deal is with fuel cells? I was reading that that weren't street legal? I was a bit confused since some posts I saw mentioned that it wasn't legal if it's not in the OEM location, others said it was because fuels cells don't have a breather cap.

Which is it?

 

Well supposedly the filler cap isn't really proper for some stupid reason. Fuel cells aren't illegal at all, unless you don't make them emission friendly. (If your state don't do emission tests, FUCK THE EVAP SYSTEM)

TTORA has been dead for a year, it's sad

 

Nope... Wyatt didn't reply. I do understand the panhard bar stuff a bit better..... but I haven't gotten a reply on the pros/cons of differently triangulated 4 link set-ups. :\

Yeah... On TTORA, I pretty much just hang out in the Newbie Tech, Early Taco Tech, SAS Tech, and Classefieds.

 

Sorry, what was the question? I've been super busy. Shoot it to me here and I'll get back to it.

 

No problem, man.

I'm mainly hoping to learn a bit about the different 4-link triangulation set-ups:

What are the pros/cons, differences in axle movement (foward-back movement and "rear-steer" during flex), consistency of pinion angle during suspension cycling (if any difference), anti-squat, and ease of setting up, between a dual triangulated 4-link vs semi-triangulated. And with semi-triangulated, what is different in the axle movement between triangulating the upper links vs the lower links? In my mind right now, it seems like a dual triangulated set-up on the rear would be best for keeping rear steer at bay during articulation, but an uppers triangulated 4-link would be easiest to set-up due to the less space it takes up??

Also, do you have an opinion on Watt Links vs Panhards on 3-link setups meant for low-speed crawling? I know your rig is 3-linked front and rear with panhards...

Thanks, man.

 

Bumping up to 4.88's, triple drilled flanges and installing trunnion bearing eliminators. My driver side's were shot...

 

Ok. Alot there. Give me a bit of time and I'll get those answered for you later today. Basically though the double triangulated and the Simi triangulated are about the same to set up. You still have four links going certain directions the only difference is two of the links are straight on the Simi. As far as rear steer is concerned there is very little on a link suspension compared to a leaf sprung suspension. There is some during articulation. It can be helped. Simple geometry. When a link is sitting parallel to the ground is when the axle is furthest from the forward contact point of the link. When you articulate it the distance when measured in a straight line parallel to the ground of the axle to the forward point of the link shortens on one side if the other side stays parallel to the ground. But if both sides move in opposite directions, one up and one down the same amount then they both move forward the same amount canceling any steering effect.
I'll get more to you later.

 

Keep in mind however that when we are talking about trucks that weigh between 5K and 6K+ we aren't going real fast so these link set ups are going to get down to ease of installation.

I'm not familar with the watts link set up and haven't seen any in off road applications in person so I can't comment on those.

The three link set up is the easiest to set up IMO and allows you to get the truck as low as you want it because you don't have the triangulated links in the way. You'll see a lot of the KOH guys running three links because of this. ON a stock like truck like ours it's hard to get a four link triangulated under the truck without moving a bunch of stuff. Engine gets in the way, fuel tank gets in the way, etc.

Also, there is less binding with a three link than there is with the four link at extreme angles. You can get a funny bump when using just a front or rear three link when going over dips but if you use an opposing set up like mine ( panhard bars contact points at the frame and axle are on opposite sides from front to rear) it cancels it out. Also the longer the panhard bar is the less it will move the axle from side to side.

All link set ups will give you the same "steering" effect if the links are the same length because they will travel in the same arc but the three link with panhard will move the axle towards one side of the vehicle depending on which side you have attached to the frame, But they are no where near the steering effect you get with a leaf sprung set up. Toyota uses a four link with a panhard bar on the rear of all if it's SUV's and it uses a radius arm setup with panhard bar in the front in many of it's solid axle trucks and SUV's. I like the three link with panhard the best of all of them because it's the easiest to set up and to me works better for what I'm using it for. daily driving, trail running, and rock crawling. I'm not carving up canyon roads or flying through the dessert at 90mph so I don't feel any negative effects of a panhard bar. There are a lot of sports cars that use the three link set up. I know that on some of these high powered Cobra kits cars the three link is the gold option for the rear and I'm building a 56 Ford F100 that will use a four link with a panhard bar in the rear.

I have out run stock and moderately modified IFS trucks on fire roads and trails with my three link set up so it can get up and move. And that is without sway bars. But I'm not looking for something that will fly through the air. I'll build a trophy truck for that.

Hope that helps.

Wyatt

 

Yeah, emissions friendly is the real challenge in this case. We have emissions testing here in WI and I believe in CO as well which is probably where I'll end up moving back to.

 

Here is a link that will help you tons about most suspensions around.

http://www.rocksolidtoys.com/forum/showthread.php?t=272

 

Hey I finally got my truck back to the house. Now I can't find anybody local to make the lines for me what did you all do for ps and brake lines?

 

G & J aircraft for brakelines. I'd call PSC motorsport for ps lines and fittings.

 

THANKS FOR THE INFO, WYATT! Helped a ton.

+1

 

why can I not stop thinking of going SAC up front lol

 

X2.

 

may i join youz guyz?

 

Got my axle all stripped down...funny how my 78 kingpin came apart easier than most everything on my 05 does. Not a single fastener broke or stipped out. Kingpins even look like new.

I must have lucked out and gotten a gem of an axle!

 

fuck off connor wasn't asking you



douche