1971 rear strut v 1975
Posted 09 August 2015 - 05:21 PM
Posted 09 August 2015 - 07:00 PM
The spring rates are different from one year to the next, as the cars progressively got heavier.
And the strut design was changed several times.
In a given year there were different spring rates installed depending on market, model & specification such as 'sports' or not, A/C or not, etc.
Posted 09 August 2015 - 07:42 PM
What I wanted to try is putting the rear springs from a 72 240z that I have here in my 1975 2 seater.
Then use some rear strut tops in the front to try level it out.
Would this work to lower my 2 seater and keep the ride reasonably comfortable?
Posted 09 August 2015 - 08:10 PM
Your 240 spring rate would be less than the 2-seat 260 - the latter being a slightly heavier car - but after 40+ years some of it comes down to the relative condition of the springs, sag etc. Give it a try, but might be a touch soft perhaps.
Personally I prefer to have the front slightly downward raked, rather than have the car sit level at rest, to offset the frontal lift the Zed is prevalent to at speed.
I have fitted the front struts & springs out of a later 260 (my 260 2-seat is very early, like a 240), which are shorter than the originals, so the front's dropped about 15mm IIRC - it's been many years so don't quote me, got it written down somewhere.
Spring-wise I had the front springs re-set to 20mm shorter, & trimmed the rears a 1/2 coil which both shortened them & stiffened them slightly (it was all calculated). That worked fine for me, end result was just the right sensible amount IMO & in any case my driveway at the time had a tricky transition where it met the road & at worst case I had just 10mm clearance to the exhaust.
I haven't ever played mix-n-match with the different strut cap heights. Others on this forum have & could help.
Posted 09 August 2015 - 10:27 PM
Posted 10 August 2015 - 04:13 PM
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