WAKEMASTER
Junior Member
I thought I would throw this together quick. This chart compares the new 8 SPD ZF transmission to the current 6 SPD 66RFE transmission.
** I am not able to confirm the exact transmission ratios of the new 8 speed. However I would think that the ratios should be very close to what is on the ZF website for the 8HP75.
**I also assumed a 33.2" wheel in the calculations
** I put this together really quick so....
View attachment 152204
** I am not able to confirm the exact transmission ratios of the new 8 speed. However I would think that the ratios should be very close to what is on the ZF website for the 8HP75.
**I also assumed a 33.2" wheel in the calculations
** I put this together really quick so....
View attachment 152204
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