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#1 |
Member
Join Date: Oct 2014
Posts: 52
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Hello everybody
Some guy told me that the gearbox ratio from a 28-29 model A rear end is different then a 30-31? Is this true? Best regards Philips M. |
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#2 |
Senior Member
Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
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My 1928 has the stock 3.70 to 1 ratio, and most all of the 1929 -1931 cars would have the stock 3.78 to 1 ratio.
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#3 |
Senior Member
Join Date: Jul 2010
Location: upstate NY near Mass border
Posts: 789
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When I was young people said that the roadsters and phaetons had the 354 rear in them. Is that true? Jack
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#4 |
Member
Join Date: Oct 2014
Posts: 52
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#5 |
Senior Member
Join Date: May 2010
Posts: 1,307
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The the 3.70 is a very slightly higher gear than the 3.78 so you will go very (and I mean very) slightly quicker with the 3.78 ratio.
John in dark rainy Suffolk County England . |
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#6 |
Senior Member
Join Date: Nov 2016
Location: SoCal
Posts: 877
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#7 | |
Senior Member
Join Date: May 2010
Location: Redding Cal
Posts: 1,388
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I have a rear end with a 4.11 R&P in it. Someday if I get to build my hill climb car that's going in it.
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Blackwall Panthers Nor Cal chapter |
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#8 | |
Senior Member
Join Date: May 2010
Posts: 2,625
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Vince Falter's site says that 3.54's were Post 1934 and available in the AfterMarket for A and B Models. Not sure what year they came out in Aftermarket. Read about it here: http://www.fordgarage.com/pages/rearaxleratios.htm Last edited by Benson; 08-30-2017 at 06:58 PM. |
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#9 | |
Senior Member
Join Date: May 2010
Location: South California
Posts: 6,189
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Right or wrong, this gear set works well in a light roadster...it does seem to go nicely. Last edited by hardtimes; 08-30-2017 at 07:08 PM. Reason: ..... |
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#10 |
Senior Member
Join Date: Jun 2013
Location: alabama
Posts: 146
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I have a 29 Special Coupe that pinion nuts came loose. When I took it apart I found it had 4.11 gear set in it. I ordered a 3.54 gear set with new bearings and seals and never looked back, great cruise speed at 50 to 55 mph and I have been 65 mph with out straining the engine.
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#11 |
Senior Member
Join Date: Dec 2010
Location: FRESNO, CA
Posts: 12,560
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You NEVER know what "someone" put in these OLD cars! Some people even have "UPGRADED" body parts & pieces!---I have 1999 Stents & 2001 Titanium Screws & a rod from 1981!
Bill Heinz
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"THE ASSISTANT GURU OF STUFF" |
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#12 |
Senior Member
Join Date: Apr 2016
Location: Bellingham, WA
Posts: 1,163
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To make a car feel more peppy/sporty, you would install a LOWER gear ratio, not a higher one.
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All steel from pedal to wheel |
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#13 |
Senior Member
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I don't know this to be true but have always heard that the 29 Model A was the fastest of the 4 years of production.
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#14 | |
Senior Member
Join Date: Dec 2010
Location: FRESNO, CA
Posts: 12,560
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I've also heard that the '32 V-8 was the FASTEST V-8, because of some SNEAKY Cam they used, for 1 year only???--I "think" I heard it was a STEEL cam???? Bill Racer
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"THE ASSISTANT GURU OF STUFF" Last edited by BILL WILLIAMSON; 08-31-2017 at 12:05 PM. |
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