many items are self explanatory. Where you may get confused is where the code reflects the last 2 digits of the part number of the specific item. Radiator for example, 3rd line. Rad=3574611 i can try to do something with it over the weekend ... I love puzzles. Pm me your email.
You fender tag:
Rm23: Plymouth belvedere,satellite
medium, road runner
2 door hardtop
u2g: 440 280hp(net) or 290hp(net) 1-4bbl 8 cyl
1972 st. Louis, mo, usa
184501: Sequence number
e86: 440 cid 4 barrel v8 (high performance) 375hp
d34: Light duty automatic transmission
gy8: Gold poly exterior color
d6y3: Trim - luxury, vinyl bucket seats, gold
gy8: Gold poly int. Door frames
404: Build date: April 04 scheduled production date. This car was built after its spd
e34630: Order number
gy8: Gold poly top color
i: International (export) specifications
b41: Front disc brakes w/standard 10in rr drum
b51: Power brakes
c16: Console w/woodgrain panel
c56: Bucket seats
g36: Os dual racing mirrors
j45: Hood tie down pins
m21: Roof drip rail moldings
m31: Belt moldings
n23: Electronic ignition system
n41: Dual exhaust
n76: Coolant recovery system
n96: Fresh air hood
r11: Radio solid state am (2 watts)
v21: Performance hood treatment
v25: Unknown deck stripes.
26: 26in radiator
end: End of sales codes