We wanted to make a more reliable cv head assembly to replace the TY3H. This cv head is made with more common 1310 cv components and our cv flange yoke part number 3102-183CV. We have included an increase bushing so that you can install it in the original 2.560 x .067 tubing or the more standard 2.000 x .120 tubing. The ujoints and center kit are greasable on this part. This is our most popular cv head assembly. It is used on 1989 and later Toyota Pickups on some front shafts and most 2 piece rear shafts behind the center support. **If you would prefer this CV head to come un-assembled please call in the order and request the parts to come individually. We understand not everyone's press and weld set up will allow for the assembled CV to easily be pressed and welded.