C 1500 Yukon XL 2WD V8-5.3L VIN T (2001)
5. Measure the valve stem oil seals (first design) for the properly installed height.
There should be a 18.1 - 19.1 mm (0.712 - 0.752 inch) gap between the top edge of the oil seal body and the valve spring shim surface.
6. Install the valve spring (5).
7. Install the valve spring cap (4).
8. Compress the valve spring using the J 38606.
9. Install the valve keys.