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Hey guys, I'm having a full fram put in at a shop and I had a ladder bar angle concern. I bought the back half out of a car that was in the shop and I don't think the brackets are correct for how low my car is sitting. There is a pretty good down angle on the bars and I have concerns about the car going straight on the launch. See attachment
If there is only one set of mounting holes I would not be buying that set up 
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I don't want to rain on your project but I see a lot of required parts of the cage missing, hopefully there not representing this back half picture as all that is needed, are they? Is the rear suspension in and is the car at ride hieght or cloes to it in your picture? I really don't like the way the ladder bar mounts are on the rear end and where they mounted them in relation to the frame rails
If they can't insatll a ladder bar correctly how many ways can they mess up a four link installation 
You don't want the car to hurt you or drive you broke trying to make it go straight and easy to drive, does this shop have a good reputation with a lot of cars out there working really good? If not think about switching for the last changes to the rear suspension, let them learn on someone else
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Hey guys, I'm having a full fram put in at a shop and I had a ladder bar angle concern. I bought the back half out of a car that was in the shop and I don't think the brackets are correct for how low my car is sitting. There is a pretty good down angle on the bars and I have concerns about the car going straight on the launch. See attachment
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Hey guys, I'm having a full fram put in at a shop and I had a ladder bar angle concern. I bought the back half out of a car that was in the shop and I don't think the brackets are correct for how low my car is sitting. There is a pretty good down angle on the bars and I have concerns about the car going straight on the launch. See attachment
that door bar looks high, are they raising the seat? looks like it will be higher than your shoulder?
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One more thing. The way the cage is built it will not cert lower than 8.50
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yep! move the axle brackets inside of the frame rails, build (or buy)a cross member with 5 or 6 holes for adjustment. mounted between frame rails at the proper height so the car will set that low. from the looks of the frame rails there will need some creative work there to get the cross member that high.
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have never seen an offset bracket to lower the bars lower on the axle. i would be afraid that would change the leverage on the chassis. if it did, any normal tuning info would be out the window.
Quote:UH...that thing will NEVER launch with the ladder bar at that angle. I'm sorry but your going to be battling a HUGE issue.The bottom bar of the ladder bar needs to be as close to parallel to the ground as possible in order for it to work.Where you have it now the car will only spin on the launch.Build whatever it takes to get the bar level. I'll look at the other pics and see what else can or needs to be corrected. I see some Chassisworks tin in there did you purchase it from them?
Hey guys, I'm having a full fram put in at a shop and I had a ladder bar angle concern. I bought the back half out of a car that was in the shop and I don't think the brackets are correct for how low my car is sitting. There is a pretty good down angle on the bars and I have concerns about the car going straight on the launch. See attachment
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"the ladder bar needs to be level to the ground now and adjustment holes up and down for tuning."
Yeah that's what I thought too, so seeing as how the car is so low, how would you fix it? I think the axle brackets have to be re-welded and moved inboard and different front brackets made.
It is good that you know that they do roundy rounders well, maybe they will be willing to learn how to do a drag race ladder bar rear suspension correctly on your car 
As already said on the lower bar and front mounts, they are all valid points A good ladder bar(quality and installation) set up properly will hook up in a mud bog in the middle of a rain storm 
Mine does I have owned and race four ladder bar rear suspension Dusters, one of them was not set up correctly, one mounting point for the front and the lower bar was not parrelel to the ground at ride hieght, it was a pig on the 60 ft. times, the car didn't spin the tire and the chassis didn't move when I hit the throttle 
. The fix was removing the complete rear suspension and staring over
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"the ladder bar needs to be level to the ground now and adjustment holes up and down for tuning."
Yeah that's what I thought too, so seeing as how the car is so low, how would you fix it? I think the axle brackets have to be re-welded and moved inboard and different front brackets made.
Since you're having the work done at a roundy round shop, make sure they're using the right size wall thickess tubing for the cage. Most dirt car shops use .095 wall which is to thin to pass tech.
good luck
Quote:A set of Chassisworks Elm II rails will work with what he has...but the car will have a 4.5-5.5 ride height in the back...not bad for what he's working with now. And with the Elm II it would use the same crossmember(Elm II has a higher kick rail)...So he's hopefully going Elm II or going round tube and going to pull out the 3x2 and add bars to make the Avenger style 4-link.
Where is he going to attach the front plates on those rails? Complete redo of the rear clip, including the cage bars that are already installed as well as basically a new housing since any good 4-link kits are going to have 360 degree brackets. A waste of money and time in my opinion but i guess thats up to them to decide. not knocking anyone just hate to see a project go from bad to worse.
Quote:Labor to get it a roller like in that pic was around 7k...parts/materials around 12-15k(depending on quality)...so around 19k total....then tin work is 7-10k... BUT I'm not in that business anymore....so who knows what the going rate is...
Chassisman.... How much green papper is needed these days to get to build a cm chassis from alston, for a 65 valiant, plus the welding job.Something like this, at these level/stage...thanks...