Lower arm setting

[Swedchevy67]

Wonder if it's important to set the lower arm in position with the notch and pin?

[davepl]

Yes. Yes it is.

[Swedchevy67]

Originally Posted by davepl

Yes. Yes it is.

****!!!!
I did remove the arm to clean it up and forget to
look at the notch!!!
What could happen? Will it move back and forward.
Do you suggest that I do it right?
Than you
Stefan
Posted via Mobile Device

[67ChevyRedneck]

Yes to all of the above. If and when it moves, it will affect your alignment.

How did you get it to seat without it going into the hole? Isn't there a gap now between the cup and u bolt?

[Swedchevy67]

That's just the odd! I can't see any gaps! But I am sure that I missed it when I
mounting it in place.
If I jack the lower arm and loose the bolts round the cup, do you think I can turn
the support arm right?

[67ChevyRedneck]

Probably... hopefully you installed them correctly, they are different L and R (notch and hole would be on opposite sides)

[Swedchevy67]

I missed that too!!! I think?
Thank you

[Guy67UK]

I'm lost as to what you mean here. Do you have any pictures to show exactly . I had to take my bottom arm off of the drivers side after it got damaged when the front wheel came off when all the wheel studs sheared

[Swedchevy67]

https://goo.gl/images/m3wUOF
Look at this link

[Steeveedee]

My antivirus software stopped me from looking at your link. Anyway-

If you got the lower control arm shaft to seat into the frame, that is one thing. But you need to make sure that the distance, as measured per the manual, is set correctly, or you will NEVER get the caster set correctly. You really need to either search the internet or get the service manual (recommended) so that you repair your truck properly, to avoid personal injury or property damage.

[Swedchevy67]

Sorry I don't follow "caster set"?
My English is limited, you know.
Sad you couldn't open the link, it show how the support arm must be installed in the "cup" that hold the lower arm in position.

[Swedchevy67]

http://st.hotrod.com/uploads/sites/2...lower-arms.jpg

[Guy67UK]

Excellent many thanks Swed

[davepl]

This looks like an aftermarket tubular lower control arm in the picture. I can only tell you what I know based on the stock original control arms.

They need to be installed with the little "dent" or "hole" lined up properly with the nub or pin or whatever you want to call the part that seats into it.

Even if you had it somehow in the perfect position, without the pin it would likely move around over time. So I think you need to verify it.

If you do not have this correct your "wheel alignment", which is to say the direction the wheels are pointing, will never be stable. It will likely always change and drift and make the truck unsafe and no fun to drive.

Or it might just all work out fine anyway, but if I were you I would want to know that it was done right.

I'm afraid to tell you, but I think you should (safely!) take it apart again and check.

[weq92f]

Have a look at this thread below. It has all the details you need including pictures...

http://67-72chevytrucks.com/vboard/s...masher+whacker

-klb

[weq92f]

Some pictures from the thread:

[weq92f]

the pin...

[Swedchevy67]

Originally Posted by davepl

This looks like an aftermarket tubular lower control arm in the picture. I can only tell you what I know based on the stock original control arms.

They need to be installed with the little "dent" or "hole" lined up properly with the nub or pin or whatever you want to call the part that seats into it.

Even if you had it somehow in the perfect position, without the pin it would likely move around over time. So I think you need to verify it.

If you do not have this correct your "wheel alignment", which is to say the direction the wheels are pointing, will never be stable. It will likely always change and drift and make the truck unsafe and no fun to drive.

Or it might just all work out fine anyway, but if I were you I would want to know that it was done right.

I'm afraid to tell you, but I think you should (safely!) take it apart again and check.

Your absolutely right! I will do so. Thanks

[Swedchevy67]

Originally Posted by weq92f

Some pictures from the thread:

That's the notch, I know. I will make sure it is in place. Thank you

[Swedchevy67]

Originally Posted by davepl

This looks like an aftermarket tubular lower control arm in the picture. I can only tell you what I know based on the stock original control arms.

They need to be installed with the little "dent" or "hole" lined up properly with the nub or pin or whatever you want to call the part that seats into it.

Even if you had it somehow in the perfect position, without the pin it would likely move around over time. So I think you need to verify it.

If you do not have this correct your "wheel alignment", which is to say the direction the wheels are pointing, will never be stable. It will likely always change and drift and make the truck unsafe and no fun to drive.

Or it might just all work out fine anyway, but if I were you I would want to know that it was done right.

I'm afraid to tell you, but I think you should (safely!) take it apart again and check.

The picture is from the Internet and not from my truck. I just wanted to illustrate what I mean. Stefan