Thanks Julie
I fully understand what you say... but
Fact is old ones are impossble to push in by thumb, needs to be pressed in (or hammered in). I had to hammer them out.
New ones you can see from videos - zero effort to push them in..
Measurements - using digital caliper (almost all of them made in CHina nowadays) is not the best way, zero shifts.
So I took old (30 years) mechanical caliper and made all measuremens, there is no chance that zero shifts:
OD 26.40 -> Old one looks to be a bit bigger around 26.45 - 26.50
ID 21.70 (yes, they have play over the brand new oem collar 52141-300-000) -> forgot to measure old one but you said it should be 21.40 so 0.3mm diff
Total length 44.0 ->OK
Depth of top lip 1.80 -> 0.2mm less
OD of lip collar 32.00 ->OK
Length exl collar 42 - >OK
Sending you PM too
