Adjustable Control Arms

Why are there not any control arms out there that adjust like your tierod adjusts? Loosen up two jam nuts and adjust it in or out? Is it just a cost factor or is this a bad idea?

Like a turnbuckle?

Not sure.

I have seen ACA lock nuts loosen, and the arm remains the same length, just turns. Infact, some of the earlier low priced ACAs worked that way to add flex.

I suspect if you added another locknut and a turnbuckle to the equation, the arm may shorten, or even fall in two if the jam nuts came loose.

Just a left hand thread on one side and a right on the other with jam nuts to hold them in place. It would be much easier to adjust your caster if you didn't have to take them off to adjust them. I would just want the uppers to be that way and leave the lowers adjustable on one end.

jwtrapper said:

Why are there not any control arms out there that adjust like your tierod adjusts? Loosen up two jam nuts and adjust it in or out? Is it just a cost factor or is this a bad idea?

Click to expand...

That's how I made my upper arms on my LA's, works great too.

I am wanting to do this for my Y-Link.

IIRC, the Nth Degree arms were like that....

Might wanna see if AEV has made them yet....

I'm in the process of making myself upper and lower control arms using Johnny Joints on the one end and OE rubber bushes on the other end (the uppers with the bush on the axle of course). Regarding the adjutment of the the uppers to adjust in the same way as a tie rod - I was thinking the very same thing. Would make adjustment so much easier and would also allow for very fine ajustment rather than relying on the next closest half turn adjustment otherwise.