I replaced mine last summer. It also was in very tight but I did manage to get it out by rotating it. I had a problem getting the new one in... I used a bit of oil wiped around it and rotated it into place until it seated properly. You might want to try a bit of penetrating oil on it and let it sit for a while or for a day or so.
1960's: Tents.. 1970's: Soft top & Hard top P/U.. 1980's: 17' RV.. 1990's: 24' RV.. 2000's: 2002 Cougar 276EFS; 2005 Laredo 29GS; 2002 GMC 2500HD Ext Cab 4x4; 2015: 2006 Class 'B' Chateau Citation; "(Nfld/Labrador-Yukon/NWT/Alaska-Gaspe', Que./Florida!!)