This item is used specifically for the Engineer Freely Intermediate Shaft. The stock DQ250's seal is very large and interferes with the 2GRFE and 2ARFE block. So the less intrusive way to solve this issue was to cut down the seal snout on the DQ250 and install an adapter ring to allow a smaller seal to be fitted.
Instructions on how to install it can be found here
Seal adapter can be welded in or the use of retaining compound (instructions above are retaining compound).
Made from 6061-T6 (no longer anodized due to welding installation).
Comes with Seal Adapter, Seal (SKF Viton Seal), Vial of Loctite Retaining Compound 638.