[Fot] Group 44 TR6 suspension question

[John Frymark]

In the recent Classic Motorsports comparison of Sam Halkias' and the  
Group 44 TR6, the latter is listed as having Eibach springs. Anyone  
able to shed light on this? Did Eibach make TR dimensioned springs in  
the period or is there a trick mod to adapt a current offering to fit?  
I am especially interested in the rears to have readily available and  
lower cost options than custom-mades

John Frymark