Dummy shock length when Adjusting rear ride height to match Eibach pro front springs

[Philip 0]

. 
Can anyone confirm the length my dummy shock needs to be to give the correct ride height to match the Eibach pro springs on the front (25-30mm drop). Thanks

(Otherwise std 1.9 Gti)

[dcc 855]

Just to be sure can you accurately measure your rear torsion bars diameter 

[Philip 0]

Both bars are almost exactly 19mm (18.98 and 19.05 - measured with a digital vernier)

 

I did a search yesterday and found 3 recommended lengths (315mm 318mm and 320mm) so thought i best check on here for the correct one :-)

 

Thanks for the help and the good news is both bars came out really easily

[Tom Fenton 1,524]

312 centres is what I'd use.

 

Quick but rough way of checking GTI bars is use a 19mm spanner. If its a nice fit they are GTI. If there is play they are base model.