66 frame marks

[Matt L.]

i found some frame chalk marks on the front driver's side frame under the radiator support that have a white mark and an orange shade mark in between the white marks. i am familar with the body shim markings being white but what would these be?
66 vette frame 013.jpg

[Michael G.]

Re: 66 frame marks

Shims were placed at this location as well. Unless someone has changed the shim count, this should be the number of shims you'll find at this location.

[Matt L.]

Re: 66 frame marks

Shims were placed at this location as well. Unless someone has changed the shim count, this should be the number of shims you'll find at this location.

i understand the shim count relating to the chalk marks. but i dont recognize the orange/yellowish mark in between the white marks. i thought all chalk marks were the same white color. this is an ao smith body. maybe they are different from st louis ?

[Rich P.]

Re: 66 frame marks

I have seen orange to signify 5 shims so if you have 2 white and 1 orange you shouold have 7 shims welded to the fron frame.

Rich

[John H.]

Re: 66 frame marks

i understand the shim count relating to the chalk marks. but i dont recognize the orange/yellowish mark in between the white marks. i thought all chalk marks were the same white color. this is an ao smith body. maybe they are different from st louis ?

Matt -

Frame shim marks were measured and applied on the Frame Line at St. Louis, several hours before the body met the frame; didn't matter which plant the body came from.

[Mike B.]

Re: 66 frame marks

Hi Matt,

I agree with Rich. I've always been told an orange crayon strike represents 5 shims. When I removed the front bumper braces way back when off my A.O. Smith '65 #14xxx convertible I found an orange and 2 or 3 white crayon strikes there. It all jived with the shim count.

Mike

[Ronald L.]

Re: 66 frame marks

Nice RSC's right next to those frame shims