Can you guys with link knowledge check this for me.

[Deuling]

Working on Craig's rig (priceygmc on here)

Wishbone rear with almost parallel trailing arms.

Delron mounts at frame, heims at the axle.

Not too worried about the roll factors, as he said he will probably get a fancy swaybar.





I think everything looks good. Pinion angle matches the tcase at static. 5.5*

At bump of 10" it will be darn close to perfectly horizontal, and at 10" droop it is at 10* up. I seemed to really like these results. Axle will only move back 1.125" under 10" of up travel.


The lower links are set and tacked in and I don't want to move them. So if you guys think something needs changed, I have only cut one piece for the wishbone, and its not dependent on any measurements.










sorry if you've seen these pics 80 times by now.





1-1/4" bolt






I will be making a jig on a sheet of plywood for the final setup of the Wishbone. This was just to get an idea.

 

[Greg72]

No way your CG height is 55"

Everything calculated from that number is wrong too.....


-G

 

[Deuling]

No way your CG height is 55"

Everything calculated from hat number is wrong too.....


-G

From what I could find, people were saying COG was basically the front of the top of the seat. (or as many claimed, where your nuts are..)

So that's where I marked it. The truck is tall... Craig is a little over 6' tall

You can see the little soapstone mark on the door.

 

[Deuling]

And other than the width of the wishbone, I literally have TONS of room to move the upper mount location all over, up/down/front/back.

 

[ktmoutfront]

Top of the rocker pannel if not a crew cab or full roof rig. No cage and so on. Also, tire rolling radius is not 1/2 of the diameter. You need to take the flat spot in the bottom out of the hight.

Rerun and repost.

 

[Deuling]

Top of the rocker pannel if not a crew cab or full roof rig. No cage and so on. Also, tire rolling radius is not 1/2 of the diameter. You need to take the flat spot in the bottom out of the hight.

Rerun and repost.

Its single cab long box, will have cage at some point, and the front of the bed will have lots of tube for shock mounting.


And ill have to have craig go measure tomorrow. I live a half hour away.

 

[Deuling]

And does the rolling radius need to be with the air out of the tires like how they will be at the dunes? Or at full pressure? Also there is no weight on them now besides the axle sooo....

 

[ktmoutfront]

At horse power to the ground presure.

 

[Deuling]

At horse power to the ground presure.

What does that mean?.... And how can I achieve that with a truck on jackstands with zero suspension....

 

[ktmoutfront]

That means, the presure being used when the suspension is needed most. It is somewhat assumed. Change just that numberan inch less and see what changes. Should not be a lot. Just being as accurate as posssible.

 

[Deuling]

That means, the presure being used when the suspension is needed most. It is somewhat assumed. Change just that numberan inch less and see what changes. Should not be a lot. Just being as accurate as posssible.

When the suspension is being used he will have it at around 5-10 psi or so, he has beadlocks.


What type of antisquat numbers are you running? this COG change really makes it a lot more...

 

[Deuling]

here is rolling radius at 16" and COG at 40" as a rough guess looking at pic and where the mark on the door is compared to upper rocker area.

I just really like the driveshaft angles with these link sizes, im hopng it can work.....

You guys gotta realize this is a for the dunes. Not for flexing, trail running etc. Straight line and hit the skinny.

 

[ktmoutfront]

No idea on mine. Never ran it through a calculator. Made it work from looking and watching TT designs as they progressed.

 

[Deuling]

No idea on mine. Never ran it through a calculator. Made it work from looking and watching TT designs as they progressed.

Gotcha...

Im actually not super opposed to having a number like 130% antisquat... Seems it will only aid in getting traction in the sand. Hes got a good motor, so it should only help get the wheels planted

 

[ktmoutfront]

If the back of the truck is light, it can lift so fast that traction is reduced and tire spin starts. Saw one so bad it looked like axle wrap with links. So there are limits.

 

[Deuling]

If the back of the truck is light, it can lift so fast that traction is reduced and tire spin starts. Saw one so bad it looked like axle wrap with links. So there are limits.

If 100% is basically neutral, then I don't see what %130 or so would be drastically hard...


The shocks will be mounted on the trailing arms, they will get tube on the bottom, and full of gussets and plated on the sides. Maybe some speed holes but not too many

And as you can see, he got a blazer tank to mount in the rear of the truck behind the axle, so I don't think the rear will be "light"

 

[ktmoutfront]

If you can, build the upper link frame mounts with 2 sets of holes. Adjustable can be good.

 

[Deuling]

If you can, build the upper link frame mounts with 2 sets of holes. Adjustable can be good.

I had thought of that,

the ruffstuff kit he has came with adjustable mounts, so I was thinking of using those...

I have yet to understand why the big holes are obround... but I don't see why I cant make them fit around a piece of tube, and side gusset them.

http://www.ruffstuffspecialties.com/catalog/4LKTUBE.html

 

[howdiy]

I forgot what all the numbers mean, but heres what mine looks like and I'm very happy with how it performs

http://coloradok5.com/forums/showthread.php?t=262279&page=10

 

[ktmoutfront]

Can't see it well on my tablet. Do they have the 3 holes in them?