LSD80% VS LSD40% M220 "Factory"

[_gonbau]

wow .... due to different documents I am forced to ask. How and where was the installed LSD noted or differentiated? There were no factory records of whether you equipped the LSD at what percentage was it? The percentage must be understood to be related to the year? If in a 1972 COA they tell me LSD, must I necessarily understand that it is 80% moronic? If in a 1977 COA they tell me that I have LSD, I must think that it is moronic at 40%?
Where are these data recorded if they are not present in the construction file? Regarding his image ... wow. Could you tell me where it came from? Thank you.

[gled49]

Sometimes those changes are documented in the yearly Service Information Booklets.

[gled49]

From SIB Starting in 69.

[gled49]

From service manual.

[gled49]

SIB (Service Info Book) for 70. Because they are listing part numbers, it tells me not optional, but available as spare part.

[gled49]

For 72, from service manual.

[gled49]

In 75. SIB

[gled49]

In 76 SIB. First mention of change in standard %.

[gled49]

And 76 Turbo, SIB.

[davep]

Great information you have gathered Gordon. From this we can understand that both 40% and 80% LSD's were available as option M220 from 1970 and perhaps as early as 1969. I suspect that when ordering option 220 one would have to specify 40% to receive that variant. What we really need to find is the salesman's order option book to see how they were instructed in configuring the options. For example, there were a lot of paint options that are not on the color charts.