I ordered a spacer kit from PolyPerformance (PPM-8018-175-075) 1 3/4" front, 3/4" rear. When I went to install the front spacers last night I could not slide the spacer over the bump stop tube. I searched the number stamped into the spacer (M03758) and it shows a Daystar 1 3/4" spacer for 07'-12' JK. I have a 2012 2-door JK. Anyone else experience this problem.

 

I just installed one it is tight, put it on the tube straight, tap it with a mallet and it will get over the lip.

 

Also what helps is if you apply a little grease. Also you can use your axle as a press. Place a block of wood between the axle and the space/spring isolator then jack up the axle and it'll pop right in.

 

It worked thanks for everyone's help!