I am having an issue finding the right speedo gear setup for my car. The car has 3.73's and a super t-10. When I disassembled it it had the wrong driven gear but it was just the cable attached directly to the bullet. The speedo drive gear is 8 tooth and since its a large output St-10 I presume its a 1.84 OD gear. Online charts say I need a 23 tooth driven gear but they only make 23 tooth gears for 1.76 OD drive gears...... The closest I can get to is 22 tooth which is close but not accurate. Now looking at clill's pictures of the 900 mile 74Z, photos show a stewart warner speedo drive reducer. This would let me use a smaller gear in the range that works with the 1.84 OD drive gear. Is this the OE setup? My car is just missing the speedo reducer??