Early 69 Z/28 wheels.

[TODD]

Early 69 Z/28's had AD rallye rims. This 69 Z/28 wheel looks to be latest produced in 68. K188 Dec 18 68?
see link
http://cgi.ebay.com/ebaymotors/last-one-1969-Z28-CAMARO-SPARE-TIRE-15X7-POLYGLas-tir_W0QQcmdZViewItemQQcategoryZ34209QQitemZ4583453995QQrdZ1QQsspagenameZWDVW

CRG have a record of when AD rims phased out and YH rallyes started?
True difference in rim AD to YH  clearance for the JL-8 disc option?

TODD

[JohnZ]

The date on that wheel is August 20, 1968; Jerry's book indicates that the "AD" wheels were used through December, 1968, and the "YH" wheel replaced them in January, 1969. 

[Brent]

What were YH code wheel used on once 69 Z-28's were out of production?

[william]

1970 Monte Carlo