Does a triangulate 4 link allow the rear end to move laterally?

[rp0029]

....such as the CA 4 link or ride tech 4 link? Car is 1968 camaro. I want to run super wide tires with a dse mini tub and rolled fenders. I want zero lateral movement. Should I just go with a watts like instead?

[dhutton]

It should not move. That is the idea behind the triangulated bars.

Don

[raustinss]

What Don said , shouldn't move , much ...look at eg 70 chevelle triangulated 4 link and a sway bar are the only thing holding the rear in the car

[Rod]

....such as the CA 4 link or ride tech 4 link? Car is 1968 camaro. I want to run super wide tires with a dse mini tub and rolled fenders. I want zero lateral movement. Should I just go with a watts like instead?

no...by design, but rims flex, chassis flex, the axle shafts have flex....and so on.....so you will see movement or rub if you build in tolerance's to panels to tight, also....a watts is not zero movement...

[CSG]

Only very little movement allowed by bushing deflection (assuming bushings are used)

[rp0029]

That's the question. What are the tolerances for a 4 link? I am sure there is much less than with the old leaf springs. It 1/4" too close?

[Chuck0379]

i've got 335's on my mini tub and they fit perfect perfect without rolling the fender lip. Just get good back spacing measurements. Not sure if your going bigger.

[dhutton]

i've got 335's on my mini tub and they fit perfect perfect without rolling the fender lip. Just get good back spacing measurements. Not sure if your going bigger.

On a 67/68 or do you have a 69? There is a difference. 315 is just about max for a 67/68 as far as I know.

Don

[TheJDMan]

I'm running 335's on my mini-tubbed 68 with a Chassisworks G-Link triangulated 4 link which is equipped with rod ends not bushings. I have seen no evidence of lateral movement of the rear end and I have done autocrosses and track days with this car.

[rp0029]

There's a build on here where a guy claims to have a 14" rim with a 345 tire. He has a 4 link, but 8.75 backspace and a narrow rear. Hoping to do something similar.

[Rod]

That's the question. What are the tolerances for a 4 link? I am sure there is much less than with the old leaf springs. It 1/4" too close?

the tire will flex more than a 1/4

[Ron Sutton]

There is lateral movement on triangulated 4-links with articulation. I used to not think so ... then a client friend mocked it up & tested it. Sure enough. As you articulate the housing the rear end moves off center.

:cheers:

[ccmc]

Plus there is lateral movement if one tire rises and the other doesn't. Like entering a driveway, as the inside tire lifts first, I get rubbing on the top inside edge of the inner wheel well. This is with standard wheel wells on a 69 with a 275-40/17 tire.

Rick

[dontlifttoshift]

You need minimum 3/4" to the inside, on that car you can run a 1/4" clearance on the outside as it doesn't sound like this is a car that will turn wheels in anger.