high speed rear axle

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
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rocky miller
Posts: 7
Joined: May 2nd, 2013, 7:10 am
Body Type: AA
Model Year: 1928

high speed rear axle

Post by rocky miller »

thinking about buying a high speed rear axle for my 31 AA Just curious as to how much faster it will allow to run? Currently 25-30 mph is top speed. Thanks for any information on this topic.
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rollingsculpture
Posts: 553
Joined: December 9th, 2008, 7:30 am
Body Type: platform
Model Year: 1931
Location: Takoma Park maryland

Re: high speed rear axle

Post by rollingsculpture »

i do 45 -50 .
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dyoungs
Posts: 158
Joined: November 12th, 2003, 5:28 pm
Body Type: AA
Model Year: 1931
Location: Vestal, New York

Re: high speed rear axle

Post by dyoungs »

I used to keep mine around 30-35. If you get up much past that your are pushing the engine. It is only like a 2800 rpm motor. At the 35 mph you are around 2100 rpm. Neil had a chart that calculated the speeds out.
Dave
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stautz@comcast.net
Posts: 32
Joined: May 10th, 2010, 8:24 pm
Body Type: 82A w/ 187A
Model Year: 1931
Location: Littleton, CO

Re: high speed rear axle

Post by stautz@comcast.net »

My top speed is around 55 but 45 is a good cruising speed. I also have 650 tires which gives me a few mph more.
Steve Tautz - Denver - 9-1-31, 131WB, 82B, 187A
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