VIN
9 = 1979 model year
R = San Jose Assembly
04 = Mustang Ghia 2-dr coupe
F = 5.0L V8 engine
103156 = 3,156th 1979 Ford scheduled for production at San Jose Assembly

Door Tag
Date - 09-78 = September 1978 scheduled build
GVWR - 3903 lb/1770 kg = gross vehicle weight rating
Front GAWR - 2104 lb/954 kg = front gross axle weight rating
Rear GAWR - 1819 lb/825 kg = rear gross axle weight rating
F0074 = 74 lbs front accessory reserve load
R0025 = 25 lbs rear accessory reserve load
Exterior Paint Colors - 1C HA = Black paint (1C), Black full vinyl roof, Grande grain (HA)
DSO - B7 = Pacific Ford of Canada district sales office
Body - 66H = Mustang Ghia 2-dr coupe
VR - HA = full vinyl roof, Grande grain (H), Black vinyl roof color (A)
Int Trim - ED = leather & vinyl seating, low-back front buckets (E), Red interior trim color (D)
R - [blank] = no radio?
S - [blank] = no sunroof
Ax - B = 2.47:1 axle ratio, non-locking differential
Tr - W = Ford C4 automatic transmission
00 = front springs
GG = rear spring