There's some OD componets for sale on Ebay, driveshaft and a diff.
I saw your post and remembered seeing them.
> ------------ Original Message -----------
> From: Eric Kieboom <email@example.com>
> Date: Fri, 20 Oct 2000 15:58:35 +0200
> At 18:50 18-10-2000 -0700, Ron Roach wrote:
> >But EXACTLY what would I need to do a total conversion?
> >-speedo angle drive
> >-O/D speedo cable?
> >-rear trans. mount
> >-shortened drive shaft
> >-could I use my exhisting bell housing off of my non O/D tranny?
> >Anything else?
> That's pretty much all you need, apart from the OD wiring harness, which
> a J-type should include a fuse, but no relay. You can use your original
> bell housing, since that's no different from one used on a car with OD.
> Eric Kieboom - The Netherlands
> 1976 Spit 1500 - Original Java Green