It's to adapt an SM 420 GM 4 speed to a D300, it's currently mounted to a 300, stock gears, for sale with or without the case. It wasn't my transfer case so other than the fact that it's in working order, I have no knowledge of its condition. I purchased it because it came with an HD rear output shaft which I removed, installed in my tc and replaced it with a stock piece. The adapter was cracked during shipping at the bottom, not on the area that mounts to the transfer case but a bit lower, right where the cover for the counter shaft is (see attached photos) I had it professionally repaired, I was really impressed with the job the welder did. Piece is in Long Island, willing to trravel to NYC/ northern NJ.
Asking $300.00 add $150 for the D300.

P.S. I will ship the input shaft and adapter, not the 300.

Ed
631.275.2155

It will only upload 3 atachments at a time so here's some more pics

I think it's obvious the adapter is upside down, it's just on there without bolts just for illustration purposes.

Ed