Joined: Jan 2008
Posts: 23,639
Likes: 1,106
From: Mans of NC & SW UT Desert
Bikes: 86 Katakura Silk, 87 Prologue X2, 88 Cimarron LE, 1975 Sekai 4000 Professional, 73 Paramount, plus more
+1 Inspect threads.
Are you using antiseize on the threads?
Do you have good bb tools?
Don't force it, a shop should be able to do it for you for very little $$.