For some reason, my CRT dipstick tube doesn't want to seal with this latest engine swap. I never really cared for the design of this, it just seems like the rubber seal was WAY to big for the hole and the tube just kinda smooshed it in there, but somehow it sealed....until now, when I put the engine in tonight. I got it bolted to the bellhousing and it's just not doing it. Is there any other tube out there that'll work with this, or any ideas?