N/A FC Final Drive Gear Idea

Black91n/a · 04-26-2010, 10:01 PM

You could alternatively use a 1.8 Miata diff, which uses the same aluminum rear section as the FC but with different bushings and has factory ratios of 3.9, 4.1 and 4.3 if I'm not mistaken, plus a 3.636, 4.77, 4.88 and 5.12 are available as well. Pretty much covers all the ratios one could want.

This will require a new front mount and a longer driveshaft as well, but the Miata has the provision for a mount, since that's where the PPF attaches.

04-26-2010, 10:01 PM	#1
Black91n/a Rotary Fan in Training Join Date: Mar 2009 Posts: 39 Rep Power: 0	You could alternatively use a 1.8 Miata diff, which uses the same aluminum rear section as the FC but with different bushings and has factory ratios of 3.9, 4.1 and 4.3 if I'm not mistaken, plus a 3.636, 4.77, 4.88 and 5.12 are available as well. Pretty much covers all the ratios one could want. This will require a new front mount and a longer driveshaft as well, but the Miata has the provision for a mount, since that's where the PPF attaches.