Author Topic: chalk number on drivers side of front crossmember  (Read 2211 times)

Offline Oz390

  • Hero Member
  • *****
  • Posts: 729
chalk number on drivers side of front crossmember
« on: March 30, 2012, 07:46:46 PM »
'68 Dearborne coupe.  Looks like a 530 or 930, would rotation number usually be in this location?  Looking from front of car just to right of lower mount of grille suport.
8R03S : 76A I 2A 15M 72 5 U
8R01S : 65A B 2A 28M 72 7 5 - Factory GT
8R01C : 65A M 2A 01E 72 2 W - Cal Special
8F01X : 65A I 2A 2G 20E 24 1 U - EXP500 repli-bute

Offline J_Speegle

  • Administrator
  • Hero Member
  • *****
  • Posts: 24628
Re: chalk number on drivers side of front crossmember
« Reply #1 on: March 30, 2012, 08:20:20 PM »
'68 Dearborne coupe.  Looks like a 530 or 930, would rotation number usually be in this location?  Looking from front of car just to right of lower mount of grille support.

Yes normally drivers side of the front cross member - that year that plant. Most of the time in white though have seen one other color used applies with a permanent crayon. Now you just need to find it on some of the other parts ;)
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline Oz390

  • Hero Member
  • *****
  • Posts: 729
Re: chalk number on drivers side of front crossmember
« Reply #2 on: March 31, 2012, 05:26:50 AM »
Thanks.  Unfortunately it looks like after market undercoating was used in a "sprited"manner.   ;)

I did find an "asterisk" on the RH front apron when I removed the fender today, any idea what it indicates?
8R03S : 76A I 2A 15M 72 5 U
8R01S : 65A B 2A 28M 72 7 5 - Factory GT
8R01C : 65A M 2A 01E 72 2 W - Cal Special
8F01X : 65A I 2A 2G 20E 24 1 U - EXP500 repli-bute

Offline ruppstang

  • Hero Member
  • *****
  • Posts: 3936
Re: chalk number on drivers side of front crossmember
« Reply #3 on: March 31, 2012, 10:24:20 AM »
Usually the right hand apron has a 6 or 8 to indicate the the engine. On Armand's pictures of the 428 GT-CS he is restoring there is a R there. Some times see it on the left side as well. Marty

Offline TLea

  • Global Moderator
  • Hero Member
  • ****
  • Posts: 1153
Re: chalk number on drivers side of front crossmember
« Reply #4 on: March 31, 2012, 01:06:55 PM »
On NJ cars the 6/8 is on the passenger side of the radiator support
Tim Lea  Shelby concours judge MCA, SAAC, Mid America

Offline J_Speegle

  • Administrator
  • Hero Member
  • *****
  • Posts: 24628
Re: chalk number on drivers side of front crossmember
« Reply #5 on: March 31, 2012, 01:25:31 PM »
Thanks.  Unfortunately it looks like after market undercoating was used in a "sprited"manner.   ;)

I did find an "asterisk" on the RH front apron when I removed the fender today, any idea what it indicates?

Might be what is left of other scribes/markings. On 68 Dearborn (as mentioned) the wheel side of the passenger side front inner fender (battery box area) a worker applied a 6, 8 (small blocks) an S or R for big blocks. On a rare occasion there was another letter - so far I've only got that extra letter on big blocks - that plant that year.

It also appears that the passenger side of the radiator support some times (not very often) got the "shopping list" as found on early Dearborn car.

As for determining what the number is check everywhere like the back side of the door panels, seats, interior panels since these are less likely disturbed. No guarantees just need to check to see if anything is there ;)
« Last Edit: March 31, 2012, 01:27:29 PM by J_Speegle »
Jeff Speegle

Anything worth doing is worth doing concours ;)

Offline Oz390

  • Hero Member
  • *****
  • Posts: 729
Re: chalk number on drivers side of front crossmember
« Reply #6 on: March 31, 2012, 07:16:18 PM »


8R03S : 76A I 2A 15M 72 5 U
8R01S : 65A B 2A 28M 72 7 5 - Factory GT
8R01C : 65A M 2A 01E 72 2 W - Cal Special
8F01X : 65A I 2A 2G 20E 24 1 U - EXP500 repli-bute

Offline J_Speegle

  • Administrator
  • Hero Member
  • *****
  • Posts: 24628
Re: chalk number on drivers side of front crossmember
« Reply #7 on: March 31, 2012, 08:31:45 PM »
Yes the 8 with a line through it for that year and plant.

If this is your X code (don't have any other Dearborn X codes to compare) that is interesting as I would have expected it to be marked there much like an S code.

Thanks for sharing
Jeff Speegle

Anything worth doing is worth doing concours ;)