I was wondering about taking some off my tbird yoke? I don't see what mine looks like though and can't see what the pic is like above. That yoke doesn't look like a long spline. My chevy truck yoke is just a long spline(approx. 6") that could probably be ground down 3/4" to make some room. I'm ignorant on the details here though like just what the difference in length is between driveshafts. Also I don't know how much travel on the yoke is needed and how much engagement of the yoke is needed.
$50 shipping from Canada, new ujoint ?? for my yoke, $100 driveshaft, some grinding and polishing, sounds plausible. There's a lot of research to be done to be sure though.
1992 Tbird LX 5.0, 3.73 gears, 1995 Cobra intake, deleted air silencer, 2.5" mandrel bent dual exhaust, SCP shorty headers. Updated four-hole fuel injectors. SK shift kit in AOD. Vogtland 0.9" springs, Tokico and Bilstein shocks.