Wheelbase changes through the years?

[safe]

When you read books and magazines you come across a lot of different numbers.

I think we all are aware of the SWB vs LWB change.
65-68: 2211 mm
69-?: 2271 mm

But are there other changes? I have seen other numbers indicating slightly longer wb after the aluminum trailing arms arrived.
Did the turbo have a 10mm shorter wb, as I have read?

The 911 got new trailing-arms in 69, 72, 74 and in 75 in the turbo, so could the wb have changed also, or is it just bulls**t, like it usually is?

[safe]

Originally Posted by safe

I think we all are aware of the SWB vs LWB change.
65-68: 2211 mm
69-?: 2271 mm
75- 930 2261 mm

The above numbers was from Peter Morgans Original Porsche 911.

They are not the same as from "Porsche 911 story"

64-68: 2211 mm
69-71: 2268 mm
72- and forward: 2272 mm (1973)
75 930: 2272 mm



What does the 2272 come from? from the 72 trailing arms or what, the aluminum didn't arrive untill 74, right?