Ball joint extension?
#2
It effectively makes the spindle taller, which improves the camber change as the suspension moves while cornering. This is a known problem with the A-body suspension and the spacer is one way to fix it.
#3
I didn't know about this. I love your knowledge, and hate that I don't posses it....lol.
#5
The spacer does essentially the same thing as the B-body spindle swap, but without the bump steer that the B-body spindles induce due to the different steering arm location.
#10
The only potential issue you might run into is insufficient room for the shims required to properly align the front end with those spacers. Aftermarket companies sell tubular upper control arms that have been shortened to accommodate the taller spindle. There are also offset cross shafts available for the stock length arms that accomplish the same thing. The problem really comes when you have a wider BBO and especially headers, which can get in the way of the control arm when you use the correct number of alignment shims.
#11
#12
Some experts advocate using taller ball joints. Howe sells them. Improved cornering is the goal. However that extender looks bigger than the tall ball joints. The other use is to allow higher lift on the front end on drag starts to load the rear tires for better traction. The tires can drop further. Once you get going the front drops down to normal height.
#13
Here's more info.
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