twin I beam prerunner 79 f250
 

I see quite a few trophy trucks on here so here's mine. It's getting closer to done so I'll try and catch you guys up real quick. For more details here's the build thread from the beginning 2015 desert build off.. '79 f-250 - RCShortCourse

It's tig welded 3/16 solid rod for the most part. I built the twin I beam front suspension and I am using wraith knuckles that pivot off of tapped king pins made of 1/4 rod

Re: twin I beam prerunner 79 f250
 

The chassis/ truck cab is more prerunner or weekend toy styled rather than trophy truck. It'll have a full interior. The center consul/ tunnel houses the motor and trans.

Re: twin I beam prerunner 79 f250
 

Here's a couple pics

Re: twin I beam prerunner 79 f250
 

The rear axle is a wraith axle. Mocked up with wraith trailing arms but I'll be building my own trailing arms and upper links. The and is flipped to achieve a better drive line angle. I'm using a exo trans because I'd it's size and simplicity

Re: twin I beam prerunner 79 f250
 

And Most recently I've mocked up the swing steering. I'll be making more permanent links and a servo mount very soon.

Re: twin I beam prerunner 79 f250
 

Love it! Good job.

Re: twin I beam prerunner 79 f250
 

Having a slight problem with the forum, it's only letting me press the like button once.

Re: twin I beam prerunner 79 f250
 

Pro Cat Tip: Press Unlike then Like again. Lather Rinse Repeat"thumbsup"

I almost think that front end should be in the "Pics that make you go WTF" thread. I can't even...

Re: twin I beam prerunner 79 f250
 

does it get the full range of steering with that setup?

Re: twin I beam prerunner 79 f250
 

Thanks everyone! Yes it does get full range of steering. I'll post a video of the steering once the servo is installed

Re: twin I beam prerunner 79 f250
 

I like that steering setup, and the truck's looking great!

With the way the upper links are angled, I'm assuming it'll act as an ackerman steering setup? (Meaning the when turning the inner wheel turns sharper?) Or is it an equal throw setup?

Re: twin I beam prerunner 79 f250
 

Love the build this thing is bad a$$. just one question do you think the radius arms will need some kind of pivot points where they meet the control arm?
and im subscribed

Re: twin I beam prerunner 79 f250
 

The tie rods both throw equally. Ackerman is related to the tie rod attachment points on the knuckles in relation to the width and wheelbase of the truck. This set up has a little Ackerman I believe. I'll double check when I get home. The best part of this steering tho is I have no bump steer through out the travel.

Re: twin I beam prerunner 79 f250
 

No pivots are needed here. With out shocks the front drops almost to the point that the front tires touch. The only limiting factor is the pivot balls in the rod ends. It is much stronger welded solid and I'm planning on gusseting that attachment point also for strength. This heavy old truck should be able to take some abuse when it's finished lol!

Thanks again for your compliments guys. This front suspension and steering set up is the reason I'm building this. I wanted to see if I could replicate the 1:1 setup and have it function as well. But mostly because it looks sick as f**k!!

Re: twin I beam prerunner 79 f250
 

Thanks, I'll give that a try.

Can you odd?

Re: twin I beam prerunner 79 f250
 

absolutely epic, did you have a particular inspiration or is this a homebrew design?

Re: twin I beam prerunner 79 f250
 

Great fab work man. I love it! "thumbsup"

Re: twin I beam prerunner 79 f250
 

Thanks guys. I built this piece by piece from a design I had in my head. It's my first custom build and I'll tell you next time I will plan it out better! At least some detailed drawings. I'm happy with the out come so far but I see where the wood dowel mock up and stuff would help out greatly.

Re: twin I beam prerunner 79 f250
 

Steering is complete! Servo mount made and new links done!

Re: twin I beam prerunner 79 f250
 

Here's a video. It's a little sloppy. The plastic knuckles I'm using for mock up are worn and there's no bushings in one. The screw's are poked thru but no bolts on the back but it shows how it works.
Twin I beam swing steering Rc test: https://youtu.be/lrujndmsdCU

Re: twin I beam prerunner 79 f250
 

I also got the seats, steering wheel, oh shit handle, and side impact protection done

Re: twin I beam prerunner 79 f250
 

You gonna put those seats on sliders? :^)

Re: twin I beam prerunner 79 f250
 

I probably should eh

Re: twin I beam prerunner 79 f250
 

I only have 1 complaint/critisism so far with your build :) If you're going for authenticity, raise the seats up a bit, otherwise if you're putting a driver fig in, he's gonna be looking like a little old lady trying to see over the wheel :P

Re: twin I beam prerunner 79 f250
 

If this works... this is about where the top of the bolsters should be at least, maybe even just a little higher.. https://scontent-atl.xx.fbcdn.net/hp...29512395_o.jpg

Re: twin I beam prerunner 79 f250
 

Of that's your only compliant I can live with that lol. I've been thinking about putting figures in there but I don't have any to build off of. It would be really simple to put a couple spacers under the seat to raise it. It'd be much more of a pain to cut the mounts out and lower them. So I kept them a little lower. Right now the seat backs come about half way up the window of the body. A little higher would be ideal for empty seats.

What height of figures do you guys use? And where do you get them? I was going to go to Walmart and see if I could find something I like. The only real requirement right now is I need a hot chick in the passenger seat"thumbsup"

Re: twin I beam prerunner 79 f250
 

very nice build.
but what happens if you take an impact to one front wheel. won't it bend the suspension arm(cant think of the name curently)

Re: twin I beam prerunner 79 f250
 

Most guys around here use WWE figs. Any figure that's about 6-7" in height(haven't actually measured one yet) should work, since that should roughly work out to a 6ft dude at 1:10. I was basing my observation on the seat itself, since the top bolsters on the sides are pretty much shoulder level on a real race bucket. You could probably just google images of race cars and get an idea of where the seat is in orientation of the wheel, if you wanted to adjust it. :) I also can't really give TOO many complaints since I'm unable to build one of these myself currently due to lack of space.

Re: twin I beam prerunner 79 f250
 

Those seats are waaaay high back. But what are you going to do unless you make your own? A lot of stuff used to detail your build doesn't scale out right to those in the know, just like the seats. First thing I noticed was the hole for the harnesses is too high for a proper and safe installation in the real world. Doubt it would pass tech on that point. He can always set them in booster seats and the problem is solved. Whats the law anyhow, 5 feet tall and 60 lbs? Action figs are embryos! :^)) Speaking of tech WC, I didn't notice the little tag on the chassis making you SCORE legal. Pre runner only then, right?

Re: twin I beam prerunner 79 f250
 

Any updates? You're starving me of my RC porn here! :mrgreen:

Re: twin I beam prerunner 79 f250
 

TTB is money! Always wanted to build a setup like this. You got a good thing going here.

I may have missed it, but where did you get the body from? I am building a prerunner as well and in the market for an old Ford truck body.

Re: twin I beam prerunner 79 f250
 

would love to see this one complete. What happened here?

Re: twin I beam prerunner 79 f250
 

wow jus found this thread!!! ive been slowly building a beamed chassis as well!! would love to see more of this build and more like it!

Re: twin I beam prerunner 79 f250
 

Ok. It's been a busy summer here with the 1:1 life but stay tuned I'll be back at it soon.
Joe, do you have any pics of a thread of yours? Pm me if you want and I'll give you my email.

Re: twin I beam prerunner 79 f250
 

Ecd that's a j concepts 79 ford body

Re: twin I beam prerunner 79 f250
 

Progress!! It's back on the bench! Got the body mounts and some supports in place but ran outta gas for the welder. Good news is the chassis is almost complete.

Re: twin I beam prerunner 79 f250
 

Pics

Re: twin I beam prerunner 79 f250
 

Looking great! Glad to see you're back on it.

Re: twin I beam prerunner 79 f250
 

Made some of the panels today.

Re: twin I beam prerunner 79 f250
 

Looking great!