factory doodles and drawings

[340challconvert]

Clearly a 10/22 date code on the differential
on an (October 6th SPD) car

[340challconvert]

Some factory marks on cuda doors that is for sale on e bay at the moment 

[71vert340]

 As I have been cleaning up the underside of my 74 Charger Rallye, there have been some interesting marks come to light. Here's the best.
Terry

[bcbassfishing]

not to hijack this cool threat but does anyone know anything about "rock" on the wheel housing?  My old 70 440-6 Cuda had it and seems to be common on 6bbl cars... aar or 440 versions.  Getting soft on the brain but don't remember it shown on Challengers.

[cuda hunter]

ROCK is all over the place. 

[cuda hunter]

There was a doodles thread on CC that had a lot of rock pictures.  Surely someone else has some Rock pictures.  Anybody out there? 
Looks like we have 3 so far on this thread.  2 from AAR's and one random unknown. 

[7E-Bodies]

I'd be interested in knowing what SPD cars "Rock" visited, and which line he was on, or if he was more random.

[cuda hunter]

I would love it if enough people would post up these pics and spd's so that we could find that out. 
I've always been curious as to who he/she was. 

We need more people to post up pictures then.  Would love to piece that together.

[VCODE]

My 70 Challenger R/T with SPD 610  on left wheel well
Bob

[Marty]

To update an old thread. I was working on this 1970 T/A and found this on the wheel well when I pulled out the interior.

[cuda hunter]

That's awesome!  What's the spd date? 

[ek3]

dash doodles !! and the wheel house are from 1971 440-6 4spd shaker car..

[ek3]

int. wheel house

[Marty]

That's awesome!  What's the spd date?

Sorry, but what is SPD ?

[318Stroker]

That's awesome!  What's the spd date?

Sorry, but what is SPD ?

Scheduled production date. Not necessarily the actual date the car was built, but the date that the car was originally scheduled to be built.