In showing the differences I will use the Kirtland Elder's Quorum Record 1836-1841, which is from the RLDS Church Archives and edited by Lyndon W. Cook and Milton V. Backman, Jr., Provo, Utah, Grandin Book Co., 1985.
Backman & Cook eds. Kirtland Elders' Quorum Record (1985), p.25
"6th Joseph Smith Jr made Some remarks [These minutes contain information concerning the Prophet's activities in Kirtland not included in his published History.] and Notified the Elders that the Solemn assembly was to be Called on the 6[th] of April & also that those Elders who were Not anointed must be anointed before that time [Footnote: The Prophet's remarks refer to a second solemn assembly planned for the 6th of April, 1837. Worthy brethren who were unable to attend the solemn assembly the previous year were invited to participate in certain purifying ordinances preparatory to receiving a spiritual endowment of power. These ordinances consisted of (1) washing "head to foot" in soap and water, (2) washing in clear water and perfumed whiskey, (3) having one's head anointed with consecrated oil and receiving a blessing by the spirit of prophesy, (4) having the anointing blessing sealed with uplifted hands (solemn prayer, a sealing prayer, and the hosanna shout), and (5) washing of faces and feet and partaking of the Lord's Supper.] Also prophesied that unless the church acts in perfect greater union than they had for the winter past it Should be Scourged until they Should feel it four fold to that of the dispersion of Zion."
In summary the Kirtland ceremony included:
Notice no oaths, penal signs, apron, grips, keynames, five-points of fellowship or any other Masonic similarities. Furthermore, anyone familiar with the current LDS endowment or even the pre-1990 version would realize that the "endowments" were different in both the Kirtland and Nauvoo Temples. The LDS Temple ceremonies (post Nauvoo) are described at Dave's Controversial Religion Page: http://www.inlink.com/~rife/religion.html Three versions of the LDS endowment (1931, 1984, and 1990) are described at this web site.