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Jim Brierley · 09-09-2019, 11:55 AM

I tried 3.27's in my speedster a few years ago. Highway cruising was OK but not as high as I wanted, takeoff from stop was not good, using a 28 tooth V8 trans, on hill climbs it was terrible. With a Model A trans it might be OK? I changed to a quick-change rear and love it. I use 3.05 for road use and 6.40 for hill climbs, starting in 2nd gear. I have used 4.55 on hill climbs and it works very well but because of my stroke I have trouble making the 1st to 2nd gear shift. As Brent says, 3:1 is about perfect for highway, that's why I have OD's in my other A's.

09-09-2019, 11:55 AM	#9
Jim Brierley Senior Member Join Date: Jun 2010 Location: Temecula, CA Posts: 4,085	Re: 3.27 ring and pinion, anyone using one ? I tried 3.27's in my speedster a few years ago. Highway cruising was OK but not as high as I wanted, takeoff from stop was not good, using a 28 tooth V8 trans, on hill climbs it was terrible. With a Model A trans it might be OK? I changed to a quick-change rear and love it. I use 3.05 for road use and 6.40 for hill climbs, starting in 2nd gear. I have used 4.55 on hill climbs and it works very well but because of my stroke I have trouble making the 1st to 2nd gear shift. As Brent says, 3:1 is about perfect for highway, that's why I have OD's in my other A's.