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914World.com _ 914World Garage _ rear spring identification

Posted by: sean_v8_914 Dec 12 2011, 09:17 PM

while spring diameter may not be exact science , it can be used as a guide to help us figure out aprox spring rate.
here are some measurements I took from the stash of springs

12.88mm = 200#
11.88 = 180#
11.26mm = 165 progressive
10.8mm = 140#?

9.7mm = stock X#

Posted by: stugray Dec 12 2011, 11:10 PM

Welt
43/92 SP100 10.7 mm (100#)
67253 SP180 11.7mm (180#)

Eibach
336767 080.250.0225 9.86mm (225#)
1000.250.0175 9.90mm (175#)

So it seems that you can tell with the weltmeisters, but not the Eibachs.

Posted by: sean_v8_914 Dec 13 2011, 07:48 AM

those eibachs would be teh 2.5" and 2.25" smaller type used on adjustable spring perches like ground control. your part number indicates 2.5"

Posted by: stugray Dec 13 2011, 09:32 AM

Both Eibachs are 2.5" One I got from the PO is a 175# and the ones I just got from ground control are 225#