Quote Originally Posted by OldSchool View Post
Gforce transmission seem to have one. Read a couple of magazine ads about them.

https://www.gforcetransmissions.com/t5_popup_gears.asp
G force website is dogshit, email q's bounce. I called and you need to do the entire 1st through 4th G force rebuild kit to be able to make use of the 26 spline input.

Setting aside the website grumbles, G force looks to be stout.

I'm back to 10 spline clutch.

Thanks for the link OldSchool.