I found some aftermarket 2" drop A Arms on eBay that say they fit a '56 Olds, but they're the same as the fit for a '56 Chevy. Is this correct? I'm new to the Olds world, but quite familiar with the tri-five Chevys and the Olds a arms don't look anything like the bowtie parts. Any thoughts?

 

"They" can say anything they want . 56 Chevy A arms will not fit a 56 Olds.
Back then , every division had it's own engineering dept and very few chassis parts fit more than one make .

 

VERY VERY different ----- 1956 Chevy had BALL JOINTS,
1956 OLDS still used King Pins;


You draw your own conclusions....................

 

This conversation jogged something from my "old memory bank" .
I seem to remember a really cheap and unique way to "drop" the front end on this type of suspension .
You simply turn the spindle supports (the piece that goes from upper A arm to lower ) upside down . As I recall they may have been swapped from left to right also to keep the proper steering axis inclination.
Maybe others can chime in on this .

 

There is a lot I don't know and all the time I find out how much I don't know but I never heard of lowering a car by changing the control arms. Either cut the coil springs (not the preferred method or change the spindles. I never heard of flipping the spindles over, That is interesting.