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-   -   3.54 ratio stock in an axle (https://www.fordbarn.com/forum/showthread.php?t=348408)

panhead_pete 04-15-2025 12:06 AM

3.54 ratio stock in an axle
 

Did any of the V8 banjo rears come stock with a 3.54 gearset?

Thanks
Pete

69a 04-15-2025 03:34 AM

Re: 3.54 ratio stock in an axle
 

Yes! I'm no expert, but 11-39 is 3.54:1

Steves46 04-15-2025 05:37 AM

Re: 3.54 ratio stock in an axle
 

To the best of my knowledge most of the 1946 cars.

rockfla 04-15-2025 06:48 AM

Re: 3.54 ratio stock in an axle
 

A 3:78 to 1 was offered in 1932 4cyl's and starting in 1934 a 3:54 to 1 was available in both passenger & commercial vehicles.....starting in 1937 3:54's were offered with the 85Hp only....NOT the 60hp.

rockfla 04-15-2025 07:18 AM

Re: 3.54 ratio stock in an axle
 

1 Attachment(s)
Sorry for the blurry edge scan but this starts 1932 at the top through 1938

deuce lover 04-15-2025 07:45 AM

Re: 3.54 ratio stock in an axle
 

I think the OP wanted to know if the 3.54 was factory installed at time of purchase. IMO it was special order or dealer installed.I did at one time in the last century have a 33,34 center banjo section with 3.54's and it was stamped that way from new I imagine.

Elmo Rodge 04-15-2025 08:44 AM

Re: 3.54 ratio stock in an axle
 

My 1936 Touring Sedan has one. I bought it in Texas in 2003. I'm pretty sure it was never changed, judging from the rest of the car.
Wayno

42merc 04-15-2025 09:35 AM

Re: 3.54 ratio stock in an axle
 

Many '42 - '48 Mercuries were equipped with 3:54 gears from the factory.

panhead_pete 04-15-2025 04:55 PM

Re: 3.54 ratio stock in an axle
 

Thanks all. It would be going under an AV8 so Im open to most years of rear although preferably 39 up for the juice brakes. Will keep my eyes open for 11-39 stamps.

alchemy 04-15-2025 08:32 PM

Re: 3.54 ratio stock in an axle
 

39 and up brakes will bolt on to any old Ford rear axles back to the A’s.

cadillac512 04-15-2025 10:56 PM

Re: 3.54 ratio stock in an axle
 

My '41 Merc has stock 3.54 gears in the banjo.

hotcoupe 04-16-2025 07:21 AM

Re: 3.54 ratio stock in an axle
 

Quote:

Originally Posted by alchemy (Post 2383906)
39 and up brakes will bolt on to any old Ford rear axles back to the A’s.

The backing plates will bolt on to an earlier axle housing, but they may not be clocked correctly ( the wheel cylinder will not be level, making it hard to bleed the brakes). I know '32 - '34 are that way.
Tom

Steve Staysko 04-16-2025 02:30 PM

Re: 3.54 ratio stock in an axle
 

I just had Strong's Garage changed out the 4.10 gear set in my 34 roadster to 3.54 and wow what a difference its a totally different car to drive, at 60 the engine purrs along with much lower rpm.

rockfla 04-16-2025 02:33 PM

Re: 3.54 ratio stock in an axle
 

Quote:

Originally Posted by Steve Staysko (Post 2384050)
I just had Strong's Garage changed out the 4.10 gear set in my 34 roadster to 3.54 and wow what a difference its a totally different car to drive, at 60 the engine purrs along with much lower rpm.

Did the same on our 1932 20+ years ago, same report, same results!!

alchemy 04-16-2025 09:28 PM

Re: 3.54 ratio stock in an axle
 

Quote:

Originally Posted by hotcoupe (Post 2383953)
The backing plates will bolt on to an earlier axle housing, but they may not be clocked correctly ( the wheel cylinder will not be level, making it hard to bleed the brakes). I know '32 - '34 are that way.
Tom

I have 40 brakes on the stock rear axle in my 32, and they work great. No modifications at all.

38 coupe 04-20-2025 07:33 AM

Re: 3.54 ratio stock in an axle
 

Be careful with the 39-41 Mercury axles with 3.54 gear sets. The driveshaft and pinion gear are one very long part with no coupler. I have been told you can cut the drive shaft off at the correct length and have splines machined into the pinion gear, but I have never done it myself.


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