upper a-arm swap side to side

[70inbville]

Guys help me out. It seems that I read here at some point that I can swap side to side the upper a-arms to increase castor? I have a 70c-10. Is this true or do I need to be researching new arms all together? Thanks

[lolife99]

I wouldn't do it.
Here's the thread that talks about it,...
http://67-72chevytrucks.com/vboard/s....php?p=5073126

Ok. I had time to tinker so after swapping the upper control arms side to side.
Here are the results.
I think this debunks the thought that the uppers can be swapped.
Yes, the caster is excessive and could be brought to 8 or 9 degrees by adding about 9/16" to 5/8" thick shims to the rear but the camber is already positive and can't be remedied.
Time to swap the uppers back and notch the lowers....

[lolife99]

I would use a set of Porterbuilt Fabrication tubular a-arms to help with caster.

[70inbville]

thanks lolife99 this is the thread I had read.