You've selected the kit for NP 205 setups

1310/1350/1410 series flange can be used with CV or non-CV drive line flange yokes. The flange is made from 5140 forged steel, and warrantied for LIFE!

DM3051GK-205 - For NP 205setups, or other 32 spline outputs that have a 3-1/16" seal bore.  Includes everything below.

• Flanged nut - 7/8"-20, flanged, stover/top lock
• NP 205 seal - 2-1/8" ID, 3.066 OD (for 3.0625" seal bore).  It's a different seal than the Atlas one, but I was too lazy to take another batch of pictures :\
• Yoke seal - 32 spline
• Hardware -  Four 1/2"-20 x 1-1/4" 12 point bolts (uses 1/2" 12 point socket or wrench)

Flange dimensions:
Overall: 5-1/16" round, 2-1/4" tall, 0.45" thick flange

Bolt Holes: 12 Total

4 - Small Threaded Bolt Hole Pattern: 3-1/2" c-c (diagonally), 7/16"-20 threads

4 - Large Threaded Bolt Hole Pattern: 4-1/4" c-c (diagonally), 1/2"-20 threads

4 - Non Threaded Bolt Hole Pattern: 4-1/4" c to c (diagonally), 1/2" none threaded through holes.

Pilot: 2" male
Splines: 32