superduty prerunner project

[JMart]

no go if I was any articulation in the back lol

Then you might have to change the spring perches on the axle. I think your springs are wrapping and causing a bad angle giving you vibration. They are softer than stock right?

 

[Cutting-Edge Diesel]

Im going to put traction bars on it that will allow articulation at some point.... but that takes time and the more time I spend on this truck the less time I have to make money... the less money I make the less parts I can buy...... right now Ive been spending to much time on this project if you get my drift lol

 

[Twinturbostroker]

Then you might have to change the spring perches on the axle. I think your springs are wrapping and causing a bad angle giving you vibration. They are softer than stock right?

I think shims would be easier then cutting and rewelding the perches.....

 

[Twinturbostroker]

What about a "torque arm".....follows along the driveshaft, really shouldn't mess with articulation or travel......although I wouldn't mount it to the back of the t-case, like they did in this pic LOL

 

[Cutting-Edge Diesel]

Well I was going to mount my bypass shocks On the traction bars (they are going to be built like radius arms) so the shocks are less travel and are further up in my bed cage. But I haven't finalized anything yet. But I would think sand will complicate a axle wrap issue

 

[JMart]

Im going to put traction bars on it that will allow articulation at some point.... but that takes time and the more time I spend on this truck the less time I have to make money... the less money I make the less parts I can buy...... right now Ive been spending to much time on this project if you get my drift lol

I understand. Now get back to work.

I think shims would be easier then cutting and rewelding the perches.....

Sure, take the easy way out.

 

[Cutting-Edge Diesel]

I just went out on the roads at my house (gravel) and did some testing and when I'm getting on it hard I'm really picking up my front left corner and setting down the back right corner. I never noticed how much it was because I was always focusing on the road/keeping it straight etc. Now I don't have my sway bar hooked up (going to have to change with the 4 link I know) but still the radius arms are a pretty good sway bar and it doesn't roll much at all in a corner. So that right there shows how soft the leafs are.

I guess I need to just get a traction bar set up in the works.

 

[JMart]

I just went out on the roads at my house (gravel) and did some testing and when I'm getting on it hard I'm really picking up my front left corner and setting down the back right corner. I never noticed how much it was because I was always focusing on the road/keeping it straight etc. Now I don't have my sway bar hooked up (going to have to change with the 4 link I know) but still the radius arms are a pretty good sway bar and it doesn't roll much at all in a corner. So that right there shows how soft the leafs are.

I guess I need to just get a traction bar set up in the works.

I wish mine were that soft. You know how projects are, fix one thing and another issues comes to light. Just dont beat on it to hard and you should be ok until you get it fixed.

 

[Cutting-Edge Diesel]

I wish mine were that soft. You know how projects are, fix one thing and another issues comes to light. Just dont beat on it to hard and you should be ok until you get it fixed.

yeah the only time It does it is when I go over half throttle on pavement. on dirt its ok because if I go over half throttle im spinning so its not loading it lol On the sand however I see that being different.


this thing gets pretty crazy when you really light the turbos up on dirt thats for sure lol

 

[JMart]

yeah the only time It does it is when I go over half throttle on pavement. on dirt its ok because if I go over half throttle im spinning so its not loading it lol On the sand however I see that being different.


this thing gets pretty crazy when you really light the turbos up on dirt thats for sure lol

Well I give you permission to wait on the jump video then.

 

[Cutting-Edge Diesel]

put the truck to work today since my 05 is in the shop being used to fab up some parts. The trailer even unloaded seemed to aggravate the vibration is why I brought this up.

some pics of both trucks when I had them both out.

 

[O2ShootTheJ]

lookin good man! I think if you ptm the grill on the regular truck it would be a knockout!

 

[Cutting-Edge Diesel]

lookin good man! I think if you ptm the grill on the regular truck it would be a knockout!

yeah probably would but its probably not getting much attention. if anything it needs new headlights. the ones on it are fogging up..

 

[backwoodsboy]

With the trailer hooked up, did you notice if the axle stayed centered in the wheel well?

 

[Cutting-Edge Diesel]

no I didnt sorry

 

[backwoodsboy]

I'd be curious to see axle position and pinion angle at droop and in bump.

 

[Cutting-Edge Diesel]

I'd be curious to see axle position and pinion angle at droop and in bump.

Why?


not trying to be an ass just curious

 

[Cutting-Edge Diesel]

I had posted this pic during install

 

[backwoodsboy]

Why?


not trying to be an ass just curious

I had a truck with similar issues after swapping leafs in the rear.
Static ride height the axle was completely centered. Under bump the axle would shift forward.
After a whole lot of screwing around we decided that the shackle length was too long. Basically the longer shackle was increasing pinion angle right off the bat and having the shackle at the rear was causing the axle center-line to shift forward under bump. Both were contributing to bind in the drive-train.

I'm sure I'm over thinking things, and you've just got a little bit of axle wrap going on, but that's how my brain work.

Did you do anything to the shackles when installing the Deavers?

 

[Cutting-Edge Diesel]

No they are stock. Unless the shackles are different from 08 leafs to my 06?