The D1 is due to the fact that I am telling you exactly how to find this cache, the T4.5 is another story!
Go to GZ, stand facing the tree with compass reading of NW at your back, look up. Do you see it!!!
Now for the T4.5, cache is a hanger, so a long TOTT will be needed. It's up there approximately 17 ft.
Pease be sure you can return the cache to the same branch before you try for it. The placement is important to the D/T.