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Old 11-25-2014, 12:12 AM   #1
Sivarti
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Default 40 Front Axle With 49 F2 Brakes?

I've been reading on this all evening and can't find anything that makes perfect sense to me.

I have a 40 front axle and what I believe to be 49 F2 front brakes. I was planning on keeping my truck 8 lug but have decided to go 5x5.5 I hope to use the spindles and backing plates, I'm also hoping it is as easy as finding some 5 lug drums and hubs. What year/years should I be looking for? Also I see 42-48 listed a lot, not 49. Am I out of luck all together on what I've bought if it is in fact 49? Sorry it's all boxed up outside and I don't have pictures. Thanks everyone.
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Old 11-25-2014, 06:48 AM   #2
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Default Re: 40 Front Axle With 49 F2 Brakes?

49 and 50 F2 front backing plates/brakes are the same as 42/48 ford car and 42/47 pickup but used a 8 lug drum. Find 40-48 fronr drums from a car or 1/2 ton . They will fit the F2 spindle. The bendix lincoln style backing plates on F2 started in 1951 and went to 1956 on the front
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Old 11-25-2014, 10:06 AM   #3
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Default Re: 40 Front Axle With 49 F2 Brakes?

Look for 53-56 F-100 front brakes.
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Old 11-25-2014, 11:24 AM   #4
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Default Re: 40 Front Axle With 49 F2 Brakes?

Sivarti, Rather than search for old parts you may want to consider the Bendix Lincoln brake conversion offered by MT BRAKE PRODUCTS. I installed them on my 40 Ford. Or, install disc brakes as the cheapest alternative.
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Old 11-25-2014, 11:38 AM   #5
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Default Re: 40 Front Axle With 49 F2 Brakes?

'48-'52 were referred to as F2 , and the '53-'56s were referred to as F250s, just the nomenclature used for the 3/4 ton Ford trucks. Essentially, they're the same 12" Bendix-style brakes, with 2"-wide shoes. The F-2/F-250 backing plate is larger in diameter than the Ford Lockheed plate was and the lip of the '40-'48 passenger drum hits the flange on the backing plate instead of slipping over it. The drum ends-up about 5/8" out from seating on the hub. This is partially due to the F2/F250 backing plates having no offset on the spindle mounting surface, where-as the Lockheed passenger backing plates had a significant offset toward the inboard. Hope this helps!

Additionally, the F1s were also a Bendix-type, but only 11" diameter. DD
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Old 11-25-2014, 02:53 PM   #6
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Default Re: 40 Front Axle With 49 F2 Brakes?

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Ok Coop, I think I'm following and then I called the antique auto ranch here in town and get thrown again.

Before I asked my original question I felt secure that my 49 F2 backing plates were the same as the 42-48's and my square back spindles would work with 42-48 pickup and car hub/drums.

Now if I understand Coop his info conflicts with the previous posts.

I'm not a dumb person but this subject has so much info and it doesn't always match. I don't have deep enough pockets to buy parts I can't use so I try to get all the info I can. Thanks for the help.
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Old 11-25-2014, 03:05 PM   #7
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Default Re: 40 Front Axle With 49 F2 Brakes?

'48-'50 F-2's etc still used the Lockheed brakes.

Easy enough to tell, if you have the two adjusters at about 2 and 10 on your backing plates; they are Lockheed, if you have the slot at the bottom to access the star wheel; they are Bendix.

You got to remember these were work trucks, I have seen many non-stock combination brakes and axles on these old trucks that were probably done to keep them working.
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Old 11-25-2014, 08:05 PM   #8
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Default Re: 40 Front Axle With 49 F2 Brakes?

Will these be a good start to what I need?

https://www.fordbarn.com/forum/showth...highlight=Hubs
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Old 11-26-2014, 09:43 AM   #9
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Default Re: 40 Front Axle With 49 F2 Brakes?

Here,s some info. that might be helpful.
http://www.basskustom.com/blog/?p=608
Also, be sure and read all the articles and links in this thread.
http://www.jalopyjournal.com/forum/t...brakes.226861/
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Old 11-26-2014, 10:27 AM   #10
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Default Re: 40 Front Axle With 49 F2 Brakes?

Sivarti .......I'd hate to be part of the confusion, and maybe I am. Can you post a clear picture of your backing plate? DD
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Old 11-26-2014, 10:31 AM   #11
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Default Re: 40 Front Axle With 49 F2 Brakes?

I'll dig them out this weekend, I think that would help me out a bunch rather than have you guys shoot from the hip. If I don't get back on tonight everyone have a great thanksgiving and thanks for the help. I tell people about this site all the time, lots of tech help here.
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Old 11-26-2014, 10:34 AM   #12
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Default Re: 40 Front Axle With 49 F2 Brakes?

The 53-56 F-100 brakes work on the early spindles with a simple inner bearing and seal change. currently have them on my 41 pickup and installed them on two other early V-8's.
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Old 11-26-2014, 11:29 AM   #13
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Default Re: 40 Front Axle With 49 F2 Brakes?

Would you consider my 49 square back spindles "early"? I am going to run '35 wires on this set up. Does that throw a whole new wrench in?
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Old 11-26-2014, 08:10 PM   #14
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Default Re: 40 Front Axle With 49 F2 Brakes?

Quote:
Originally Posted by Sivarti View Post
Would you consider my 49 square back spindles "early"? I am going to run '35 wires on this set up. Does that throw a whole new wrench in?
Yep; it does.
'35 wires will not fit on F-1/F-100 brakes unless you use some really thick spacers along with the usual wire wheel support ring.

The diameter of the '49 truck spindles where the inner bearing rides is larger in diameter than the '48 and earlier car (along with '47 and earlier truck) spindles, as a result you can not use the earlier hubs and brakes on '48-'52 F-1 and '53-'56 F-100 spindles even though the backing plates will fit. With some machine work, you could probably use some F-1 hubs with either stock or aftermarket
early drums.

Best way and probably cheapest way would be to just get some earlier spindles and put them on your '40 axle.

Actually, maybe best first step would be to figure out what brakes and spindles you really have.
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Old 11-26-2014, 10:01 PM   #15
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Default Re: 40 Front Axle With 49 F2 Brakes?

If you are going to make a change, I'd try to use newer than '52 parts. Brake drums for F-1's are over a $100 each, for chinese crap. F-2 drums are even more expensive, $133 each at MACs. If you can adapt '60's F-100 parts, they are more common still and cheaper.

This may explain why different people have different descriptions of the F-2 brakes.
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Old 11-27-2014, 02:49 AM   #16
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Default Re: 40 Front Axle With 49 F2 Brakes?

I don't know where the idea that "49 F2 brakes are Lockheed style. I took my F2 backing plates of a '49 F2 that sat in the desert for over 25 years. The owner parked it and walked off. I bought the backing plates for $30 and they are Bendix style with a single side wheel cylinder. I used '55 F100 wheel cylinders and push rods, new brake hardware, #33 shoe set from Napa and adapted Finned aluminum Buick drums with a Wilson welding hub kit to '42-'48 passenger spindles (21A). Five years on the road on my roadster and no problems what so ever. And they ARE '49 F2 with Bendix style shoes. I really don't think anyone snuck out to that truck and changed the backing plates.
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Old 11-28-2014, 01:26 PM   #17
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Default Re: 40 Front Axle With 49 F2 Brakes?

Here is what I have.
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Old 11-28-2014, 01:28 PM   #18
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Default Re: 40 Front Axle With 49 F2 Brakes?

Backing plate. Lockheed then correct?
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Old 11-28-2014, 01:30 PM   #19
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Default Re: 40 Front Axle With 49 F2 Brakes?

Quote:
Originally Posted by Sivarti View Post
Backing plate. Lockheed then correct?
Yep, the double-anchor type is Lockheed. (pic is upside down)
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Old 11-28-2014, 01:48 PM   #20
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Default Re: 40 Front Axle With 49 F2 Brakes?

And your spindle is '42-'48 style, it takes a 1/2" longer king pin than the '37-'41's.
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