The fronts are not true MacPherson struts because the spring is NOT concentric with the stuts. They are usually referred to as "modified" MacPherson struts.

The struts can be easily changed with the front control arms resting on jackstands so vehicle weight keeps the spring compressed - two bolts on the knuckle and the shaft nut up top. A spring compressor is not neceassry. Alignment should not be necessary after replacement. Always remove the top mounts and carefully inspect them for cracks. Replace if necessary.

High pressure deCarbon struts/shocks can last nearly forever, but some fail early. Failure is usually indicated by a major loss of oil.

If body rebound control is adequate and there is no evidence of oil loss, the OE struts/shocks don't need to be replaced.

Duke