Hugo (right?)
awe...yea....mine are different, that's kind of the whole deal in a nut shell - they are not exactly like the ones you are taking out...yes longer, they protrude out the end of the aluminum a little - i dont want to discuss dimensions....I made em, I know what they are
so here's a trick for you
watch the video
pay attention to the "check" fit at 2 very important places (if you watch ON youtube they are highlighed in the comments)
second - for ease of install freeze the bushings and put the coupler housing under a light bulb till its warm to the touch...they will slip in very easy.
check youe housing for damage, burrs or mushroomed edges - repair as needed
check your pin for mushroomed ends - repair as needed
install
go to the races