The Build Begins

[Baldeagle SR]

lynk check out my thread for a fuel tank option. It is a 16 gallon 55 chevy pass tank.
Rich http://67-72chevytrucks.com/vboard/s...=576185&page=2

[lynx5653]

Originally Posted by Baldeagle SR

lynk check out my thread for a fuel tank option. It is a 16 gallon 55 chevy pass tank.
Rich http://67-72chevytrucks.com/vboard/s...=576185&page=2

checked your build, looks real nice. will keep it in mind for when I get to that point

[lynx5653]

Got a bit more done on front suspension. still need to box frame and get things like steering box installed, finish welding etc. then start on rear.

[lynx5653]

I cant figure out why know one is commenting on my suspension, am I not posting enough pictures.

[Rednek13x]

have not seen this type of front suspension done on a truck like this. Very interesting. Looks like a very nice set up!

[lynx5653]

it is a totally custom suspension. my fabricator says it may be overkill but will work great.

[Kim57]

Originally Posted by lynx5653

I cant figure out why know one is commenting on my suspension, am I not posting enough pictures.

I've commented in the other thread.
It can get a little confusing when you have two threads with the same pics.
Some that show the whole suspension may get more comments.
It is looking good.
Kim

[SCHRUMGMC]

why is your dimmer switch like that?

[lynx5653]

Originally Posted by SCHRUMGMC

why is your dimmer switch like that?

no idea what you are talking about.

[lynx5653]

suspension is complete minus sway bars. body being test fit,wire harness almost ready to install waiting on tuner to reset computer. gas tank is in, changing fuel rails to a return system. had to order new inner fenders and bed rails waiting on them to arrive. I somehow lost all my pictures of above mentioned work will try and get new ones soon.

As of today the truck now has a name. it will be Mikel. truck is going to be dedicated to my older brother who has recently lost a lung and kidney and now cancer has spread to lymph nodes. Now I can yell his name whenever truck doesn't perform right lol.

[Kim57]

Sorry about your brother.
Will keep him in thoughts and prayers.
Sounds like good progress on the truck.
Kim

[lynx5653]

Thank you Kim. Truck is moving right along, hope to have running in next couple weeks.

[lynx5653]

truck is able to move under its own power. only has front brakes so kind of hard to hold back. will be bring it home soon and paint frame then start fitting body panels, try and start electrical. be good to have it back home. pics will be coming once its home.

[lynx5653]

Found a few pics I lost.

[msaintg]

maybe it is the pics, but it does not look like your suspension will work. you have up / down travel but no articulation (twisting)..... which is fine for a street vehicle that does not want body roll, but terrible for a 4x4 that needs single wheel travel. The first time you go offroad and put one front tire up on a bolder, your truck is going to tip over, or you are going to brake every joint.

[lynx5653]

truck is not being built for off road it will be a daily driver.

[dsraven]

do you have a couple pics showing your rear suspension as a complete unit front to rear? just wondering how it works. is it a 4 link system or are there 2 bars per side going forward and they join up before the mounting point/pivot?

[lynx5653]

Originally Posted by dsraven

do you have a couple pics showing your rear suspension as a complete unit front to rear? just wondering how it works. is it a 4 link system or are there 2 bars per side going forward and they join up before the mounting point/pivot?

Here are pics you asked for. My setup is mounted on top of axle because I am building it 4 x4, had to set it up this way to level out ride height.

[dsraven]

all I can say is you may want to reconfigure the panhard bar. it needs to sit level at ride height or else the rear axle will move side to side as you go over bumps. the shorter the bar the more this is exagerated. if you take the shocks off and move the axle up and down with a floor jack, with the frame supported so it doesn't move, you will see how much your set up "walks".
have fun

[lynx5653]

I will bring this up to the shop that did the install. Thanks for the info. You see any other problems ?

[OrrieG]

interesting build, just do not get the front suspension.

[_Ogre]

since your going with the 4 wheel drive, i'm not sure why your going to 4 link in back and 3 link in front
you obviously have concerns or you wouldn't be asking

one thing about your rear coil over mounts: this is a lot of cantilever at the top bolt on the shocks
not sure that much would survive on a simple shock, definitely will fail on coil over shock
move the cross member forward to support the upper shock mount



i've never seen this type of front suspension on a truck, not saying it won't work, i'm not much on 4x4 builds
it looks very similar to a short version of the hairpin mounts used on model a and model t front axle
you might want to peruse some of the 4x4 build over on the pirate4x4.com site

[lynx5653]

Orrie, I don't understand it either ,however the person who built says it will work. Was designed to give a better ride not for off road. Truck will be a daily driver work truck.

[dsraven]

the system you have, with a single mount on the rear of the front links, will change your caster when the suspension goes up and down. that is why a 4 link system works so well, because the diff stays oriented the same through the full travel cycle. i don't know how much travel you have but the more travel you build in the more the caster will change. try this on the rear suspension and you will see that the pinion angle pretty much stays the same through the full stroke of the suspension travel. this keeps the u joints working properly as well. u joints on the same shaft are made to work as a team together because as the rotate the drive shaft speeds up or slows down every 1/4 turn. if the drive line is mismatched the result can be premature u joint wear or a vibration that you can't seem to pin down.
not bashing your build, just asking that you check it out before it is too late.
google "Speed Variation of a Hooke-type Joint due to Drive and Driven Shaft Inclination" and you will get this article,with a diagram or two, explaining the theory.
dennis


Speed Variation of a Hooke-type Joint due to Drive and Driven Shaft Inclination

When a hooke-type coupling transmits a drive through an angle, the output shaft does not rotate through 360 degrees at a constant speed. Instead the speed varies every 90 degrees of rotation, and the rate of movement for one revolution is fast, slow, fast, slow (Fig. 26.9). This cyclic speed variation, and its associated vibration, is insignificant when the drive angle is less than about 5 degrees, but becomes much more intense as the angle is increased.
A simplified sketch of a Hooke’s joint is shown if Fig. 26.10, in which the driving shaft A is connected to the arm YY of the central cross-piece through the driving yoke, and the remaining arm, XX of the cross-piece connects to the driven shaft B through driven yoke. The driving yoke lies in the vertical plane with its axis YY vertical, and the driven yoke lies in a plane inclined at an angle 0 to the horizontal with its axis XX horizontal.
Speed variation with Hooke-type joints.

[lynx5653]

Dsraven, thanks for info will pass it along to my fabricator.