Mine poly slide has been in for three years and still looks like new. Spring shops can punch holes in each end and add poly buttons which do the same thing, all new springs use them and have for years. The stuff I used looks like the old Hot Wheels orange race track only its black and a little wider. The lips on both sides hold it in place.
I tried the grease and it didn't work. After a few months it was back to the same old ride. When I took them apart, they were rusted at each place the touched each other and the rest was still covered in grease.
Joe
