Trying to i.d. some Hartge springs

[oh2fly]

I have a set that I am pretty sure are e30, but I can't find any info as to which model they fit. Google doesn't seem to be familiar with Hartge, lol.
Numbers on springs are: front, 31220436 and rear:33220438
Thanks for any assistance

[TimeMachinE30]

Raul enters in 3,2,1..

[IDM]

Those will fit all e30's from 316 to 325 including ix.

[oh2fly]

Thank you very much for the info and chart. We have already run them on our 1986 325i MTech1 car and liked them a lot. About as low as Eibachs, and a little softer than H&R Sports. Good ride, but not harsh at all.