Hi Guys,

I replaced my stock 93 Mach 1 670 secondary to a 98" Mach Z secondary. Is the belt the same or how
do I reference a belt to get a 1/8th rise on the top sheave?

Thanks,

Darren

Just curious how you put a keyed secondary on a splined shaft?
Also 1/8" is way to high above the secondary, 1/16 is about max.
To answer your question, I would measure your old original secondary diameter and compare to the new secondary diameter and add or subtract that to what your original belt length is. Belt lenghts can be found in about any aftermarket mag.

Just curious how you put a keyed secondary on a splined shaft?
Also 1/8" is way to high above the secondary, 1/16 is about max.
To answer your question, I would measure your old original secondary diameter and compare to the new secondary diameter and add or subtract that to what your original belt length is. Belt lenghts can be found in about any aftermarket mag.
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Hi Mikadoo,

The secondary is off a 97" Mach Z (my bad) Its keyed. Your wit about keyed shafts on splined is lovely. :lmao: