Hi All: The engineering change to carb return spring brackets from the "pins" was actually added to the ram manifold drawing in late 1959. The drawings show no "pin" or hole for one---just a change letter referencing their removal. This was a co-ordinated change, so the brackets would have had to be available to the plants before the rams could be modified with the pin removal. Evidently, this took some time, and it wasn't until late in the model year that the brackets were apparently available. It would appear, though, that the brackets were used as soon as they became available (understandably), and the rams with the pins were simply used up. Since there are so few original cars with original rams left, the exact timing is uncertain. However, our Club reference car---that 300F owned by member Steve Albu---has BOTH the brackets and the pins. It was scheduled for build in mid March. It even has the little cylindrical cardboard paint masks still on the pins!! Just some additional info for those interested. 300ly, Gil Cunningham Tallahassee, FL In a message dated 8/29/2008 9:01:45 P.M. Eastern Daylight Time, d.verity@xxxxxxx writes: The casting numbers were the same on the rams I checked. It appears that Chrysler just ground the pin off, as the boss is still there. 300ly, Don Verity **************It's only a deal if it's where you want to go. Find your travel deal here. (http://information.travel.aol.com/deals?ncid=aoltrv00050000000047) [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/