I got this off an original sticker (with vw part number) off my ’76 bus for an earlier post.
I added load index (LI) ratings as from
http://vanagon.com/info/tires/codes.html
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Rim: 5.5J
Tyre size and designation: 185 SR 14
Max Load Rating (Pounds): 1450 = 658kg ~= LI 94
Cold Inflation Pressure (PSI)
Upto 75% payload:
Front: 30
Rear: 37
Fully laden:
Front: 30
Rear: 40
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Rim: 5.5J
Tyre size and designation: 185 R 14 C
Max Load Rating (Pounds): 1543 used as singles = 700kg ~= LI 96
Cold Inflation Pressure (PSI)
Upto 75% payload:
Front: 30
Rear: 40
Fully laden:
Front: 30
Rear: 44