Hey, those are some good photos... never seen those ones before.

But, around the late 80s they came out with a revised version of the L diesel (actually the 2L diesel) which is the 2LII. The 2LII diesel flywheels have 8 bolt holes. But, most of the 2LII diesels came with a screwy dual-mass flywheel, so most people upgrade to a 3L (next version) solid flywheel, which is what I thought I got from a guy in Oz, but now I'm starting to wonder. It did fit very well on the crank though.

'87 Xtra Cab, 4wd, 22r, 5spd
'92 Xtra Cab, 4wd, 2L-TE diesel swap, 5spd
http://toyotadiesel.com/forums/showthread.php?t=2502