I found out that the Granite J code that matches the 92 and 93 F150 interior dark grey has PPG code of 34611 (semi gloss) or 34685 (Low gloss) UCV2-1357.
See this webpage:
http://www.tcpglobal.com/aclchip.asp...truck-pg03.jpg
SEM will also make this interior paint-but only at a quart minimum-or in a spray can as special order.
http://semproducts.com/?home=1
www.paintscratch.com will be willing to make touch up bottle of it or spray can or larger amount. I have done business with this company before and the paint is always a perfect match.