Markings on Differential crossmember

[Tim G.]

While getting a car ready for judging I removed the spare tire tub to get a good look at some of the markings on my '67. This is an F41 car, so I'm familiar with the HD and SHD green marks, but there are some strange white markings under the differential that were obviously applied before the differential was installed. I can't make out the meaning here and I've never seen markings like this before. This car has not been restored or been apart. Can anyone decipher the meaning?

[Mark F.]

Re: Markings on Differential crossmember

While getting a car ready for judging I removed the spare tire tub to get a good look at some of the markings on my '67. This is an F41 car, so I'm familiar with the HD and SHD green marks, but there are some strange white markings under the differential that were obviously applied before the differential was installed. I can't make out the meaning here and I've never seen markings like this before. This car has not been restored or been apart. Can anyone decipher the meaning?

Hi Tim,

The only character that looks completely unobliterated is the one on the left (just right of the green SHP)
Looks to me that it could be a "7" if it was written with the same orientation as the "SHP"
But, if it was written from the other side, it could read as an "L"
The only axle ratio code that ends with an "L" for '67 is "AL" (327/3.08), so that's not it.
and all of the G81 ECLs end with an "A", so it's not that either (if written from the other side)

What is your axle ratio?

[Tim G.]

Re: Markings on Differential crossmember

Mark the rear is 4.11 and the final build date is 1-25-67.

[Mark F.]

Re: Markings on Differential crossmember

Mark the rear is 4.11 and the final build date is 1-25-67.

Tim -
so that's "FB" for the axle ratio - I'm not seein' anything that looks like part of an F or B except the 2nd character from the right could be the bottom stem of an "F"?

and there's only one ECL for an L71 w/ 4.11 - "PA" for L71 w/4.11 with M21, which I'm guessing is what you have

the ECL for L71 w/ F41 is "AC" - could the last 2 characters be the right leg of an "A" followed by a "C" that was written higher up of the baseline?

Still doesn't lead us to anything for the 1st 2 characters

I had mine out of the car ~17 years ago, but don't remember anything like that...took photos of almost everything back there while it was out except that!

[Tim G.]

Re: Markings on Differential crossmember

PA and FB are correct, but I see no resemblance either. We may never know what's under the differential as it probably will never come out.

[Richard M.]

Re: Markings on Differential crossmember

Could it be "72" after the SHP? I seem to recall some tank sheets stated L72 instead of L71, for the early '67 435hp cars. Or was it 425hp L71?

I think the "AC" makes sense.

Rich

[Tim G.]

Re: Markings on Differential crossmember

Richard, the VIN is in the 11000 range, so L71 is on the tank sticker. Maybe some type of inventory number.

[Richard M.]

Re: Markings on Differential crossmember

Richard, the VIN is in the 11000 range, so L71 is on the tank sticker. Maybe some type of inventory number.

Tim, I was thinking maybe the line worker was used to writing L72 as a carryover and he was acclimated to the nomenclature. I know, a long shot.

Rich

[Tim G.]

Re: Markings on Differential crossmember

A local friend with a number of L71's said the "7" may indicate the number of leaves in the rear spring. This is the best explanation I've heard.