It sure looks like the one on the right has a tall tower. Might need a straight boot.
My memory is foggy on this but IIRC the Blaster 2 used to come with an extender.
It also came with a straight boot, but that didn't click in either. I needed a 90, so I could mount on firewall. In doing some research, I may need this? https://www.amazon.com/dp/B00029JLD6/?tag=fabo03-20