New to the forum so if my terminology is incorrect; please forgive me in advance. I recently purchased a 90 Jeep Wrangler YJ series, it only has a bikini top and winter is fast approaching. I've reviewed several soft tops and am unsure what parts I need for (the rail system?) In other words, I want to purchase a top and the only parts I see on my Jeep are black sections screwed into the frame that appear to allow a top to tuck under in order to secure the top. I've seen pics of tops with extra metal arms/bows etc., do I need these pieces or can someone send me pics of the parts I need for a standard factory soft top before I order the wrong stuff? Thanks.