On the torque arm, I noticed one aftermarket company provided a cross member where you could adjust the height of the front mounting point.

What does changing the front height mounting point do for us?

I'm still half new on understanding how the suspension works, so keep it kinda simple please.

 

changing the height of the mount really doesn't do anything, as the instant center is controled by the for/aft location of the mount, and the angle of the LCA, and the point in which the plane created by the mount point of the TA, intersects the plane of the LCA's.

Do you have a picture of the mount? If i can see it, i can probably give a better explanation of what it is for.

 

I'll have to hunt the picture down. I remember seeing it, but I dont remember the brand

 

The only other thing I can image, is that you talking about something like this...



or this...



Those are decoupled torque arms, that is a whole diffrent ball game, where is uses a sliding link, to allow the instant center to be diffrent under accelleration and decell.

The last and final option, is that the company of the TA you are speaking of, is using the mounting point, as a pinion angle adjustment tool. moving the location of the mount up/down will have an effect on the pinion angle, but from that far away, it takes a pretty big change, to really effect the pinion angle.

--John

 

Nope, not them. This was a crossmember, it had the tranny point, and two vertical plates with lots of holes in them to the left of the tranny point.

I belive it was painted blue.


Quick search didnt find it. I'm about to head home, so I will look to see if I saved the picture. Whos to even say it was for a f-body. What other cars use tq arms?

 

There are many mustangs that convert to a torque arm setup.

 

ok, I was quite a bit off. Its just a crossmember, and its red.

But changing the height of the front mount point wouldnt do much?

 

who's product is that? I'm not even sure how it can function properly, it allows for no for/aft movement of the TA, which is needed since the length changes slightly due the the diffrent arc of the LCA's.

 

I'm not sure, saved it atleast a year ago or so.

I belive you are to install a busing in that "C" thing, and the tq arm still slips frontwards/backwards like the stock setup.

Was wondering what advantages were of that height adjustability.

Sounds like nothing worth making some custom bracket work.

 

Up/down adjustment would adjust the pinion angle. Same thing is acomplished with most other torque arms where there's an adjusting slider near the rear.

Kevin D.

 

I pointed that out earlier. But you don't get much pinion change when you move the mount 1/2" at the other end of the TA.

 

thanks guys. More I look at it, I wonder if its even for a thirdgen. Notice how the cars right side mount point is higher then the left side. Is that the way a 4th gen is?

Odd design.

 

Thats for a 4th gen and it is a BMR peice.

http://www.bmrfabrication.com/F-bodyChassis.htm

By using a non adjustable torque arm and by having different mounting holes, You'll be able to change your pinion angle. Like Dewey said, not by much though. It also allows the use of a stock bushing, along with the stock half shell... I think that is how it works. It's been a while since I've seen the installed pics of that.

 

Thanks Kat, Now we know whos it is.