[BFix] Crank Pulley Question

[Hot Wheels]

Hey all,
 
Got a dumb crank pulley question for ya.  When Eric N (gotta love that guy..he's everywhere..and always there when u need him) and I assembled my 351w we used steel pulleys and no split washers on the crank pulley.  Now that I'm putting the WildHorses hard anodized aluminum ones on I'm asking my self if there should be a lock washers on the crank pulley?
 
thanks for the input,MickThis e-mail is covered by the Electronic Communications Privacy Act, 18U.S.C. '' 2510-2521 and is legally privileged. The information contained inthis e-mail is intended only for use of the individual or entity namedabove. If the reader of this message is not the intended recipient, or theemployee or agent responsible to deliver it to the intended recipient,please destroy the email after advising by reply that you erroneouslyreceived this. The receipt by anyone other than the designated recipientdoes not waive the attorney-client privilege, nor will it constitute awaiver of the work-product doctrine.
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