Okay there are alot of people on these sites that answer Q's and don't know what they are talking about. Are Bseries Flywheel bolts the same as Dseries? NO, there different. I have them sitting here right in front me. Bs are almost an inch and a 1/4 long. Ds are like exactly one inch. Can you use them? Yes. Is it safe? I wouldn't use them. People already have problems with them backing out so imagine with a shorter bolt. The reason I'm leaving this info is because alot of people that don't know for sure say you can, and can delay people that are doing swaps with wrong info. On another site this guy that was suppose to be one of the best techs on the site said they were the same. Also, I don't know about 93-down, but 94-01 Bseries should say 23 on the head of the bolt. Just remember JORDAN's old Number.