Date coding explained

[HQ SS]

Hi Absinth.
Thanks.
I do actually have that one now but have not had a chance to go through it as yet.

I do not want to pollute the thread but this is what I now have

48-215 to HR master parts catalog.
1 of the HK parts books M371170 issued April 72.
1 of the HT parts books M36831

HQ
GMH Catalogue Number M37058. Date ?? 506 pages
GMH Catalogue Number M37072. Issued May 1971. 504 pages. (non-illustrated)
GMH Catalogue Number M37441. Issued October, 1973. 607 pages.
GMH Catalogue Number M37928. It supercedes M37865. Dated May 1977

I am still looking for cheap ones of these.
HQ
GMH Catalogue Number M37100. Issued November 1971. 532 pages.
GMH Catalogue Number M37441. Issued October 1972. (From what I can tell this is the same as the M37441. Issued October, 1973 one.)

I also have these ones
HJ M37529 issued October 74
HX M37865 issued August 76
HZ M37983 issued October 77
V series which covers up to VH from memory.

I also have digital versions of
HK 36640 (I think)
LC
LC Xu1
LJ
LH and LH SLR5000
LX

Then I have these workshop manuals
FB
HD
HR
HB
HK
HT
HQ 1 to 5
HQ commercial supplement.
HJ
L6 and V8 Improved performance book.
LH
VB
Followed by
HD Powerglide book
LC Trimatic shop manual
HQ LJ Trimatic Service manual
Series 3 Trimatic Servive manual Vol 1 and Vol 2

If anyone needs anything from these just let me know.
Cheers Paul.