9" Rear End tag??

Getting ready to order new tags from Marti for my '65 K Convertible.

I just found my ORIGINAL tag and it reads:WCZ-H on first line, then on second line it reads:3.50 5GC921, and acording to Tony's HIPO book the WCZ-H is for a 3.89 ratio, my ORIGINAL data plate indicates a "5" under the axle code, I don't have the ORIGINAL 3rd member here with me to phsycally check the ratio, also IS the date code correct for a July 1965 Kar??

I also just read down at the bottom of page 72 in the 4th edition book that:"Its been reported on our website by several members that their '65 axle tags used the WCZ-H code for a 3.50 open ratio??" so I guess there are more folks out there with this same tag as mine?? anyone actually have a 3.89 ratio in their Kar when they checked??

I'm going to have my restorer check mine!

Thanks, Fred for the link!! I am wondering now if the factories made the "standard" ratio tags for the rears ahead of time, then when someone ordered the no cost upgrade to 3.89 or 4.10 gesrs that they didn't bother to make new tags to reflect the ratio that was in fact in the Kar?? anyone have a 3.89 or 4.10 gear in a rear end with a 3.50 tag??

I have confirmed with my restorer (Nate Miller/Buckeye Auto Restoration)that in fact my 9" is equipped with 3.50.1 open gears, so I'll have Marti make the new repro tag read WCZ-P to be correct.