Please allow me to make a correction. The square alluminum tubing I used for spacers was 1 inch instead of 3/4 inch.
The spacers I made replaced the stock spacers.
My final length of the spacers brought them to about 3/4 inch from the tops of the tubes causing them to not contact the caps until they had 1/4 inch to go before being screwed all the way in.
All this was done with the bike off the ground.