In my spare time, I've been converting my OFNA DM-1 into a dirt oval racer since the on-road racing scene here in Georgia has dried up. My local track has a requirement whereby I can't run the two-speed which my DM-1 came with. I tried installing a center diff from my Jammin buggy and it did fit, however then I can't find a front drive shaft the correct length if I do that. I know there are some other similar OFNA cars like the Ultra GTPII and the DO car that have single speeds but I'm just not sure if they would solve my problem. So I'm hoping someone out there is runnign a DM-1 that can shine some light my way.

By the way, I've posed this question back to OFNA and haven't gotten a response back as well as to King Headz...

Thanks

Buy a Ofna Spool for a DOPRO, or I recomend getting a diff from a Ultra or a Jammin buggy and both use the 52 tooth DO gear.
I have a converted Ultra GTPII with a DOPRO chassis and a center diff