Standard ZF gearing spec for SPF cars?

Is there a factory standard gear ratio package used on all SPFs or is this something that can be changed at the time you place your order? If so, what are the ratios and final drive being used?
 

Rick Muck- Mark IV

GT40s Sponsor
Supporter
Up to the purchaser on what final ratio (most common 3.77 or 4.22 but 3.91 can be had) as well as the five ratios in the box. Superformance has nothing to do with the gearbox/ratios/final drive. Also depends upon your choice of RBT/ZF or Quaife ZFQ transaxle. SPF does not supply the transaxle, the buyer or installer does.
 
Last edited:
Back
Top