904 I D needed. /6

The only difference is the rear seal. They made the hole in the tailhousing larger after about 69 but I get a lot of newer ones that take the old seal. I have a collection of about a dozen of the newer rear seals. Same as a v8 kit. Just buy the cheapest one. Go to a place that sells to the shops. They'll have the tiny selectives. But I always say don't order anything until you know all your hard parts are good.