Replacement rear drums for a 57 D100 flathead with a Ford Rear End

[elane352]

Greetings,

 

I wanted to check with you all before making a 2nd mistake.  This posting is similar to my prior one (replacing brake shoes and wheel cylinders not realizing initially that i had a Ford rear end).

 

Now I want to replace the drums. I ordered drums for a 1978 Ford F100 given that I had installed wheel cylinders and brake shoes based on that year, make, and model as recommended from this site. The wheel cylinders and brake shoes are fine.

 

I erroneously ordered the wrong drums.  I have a 5 x 4.5 inch pattern on the truck now. My understanding is that the 5 x 4.5 is typically a Ford pattern. What I ordered appears to be likely 5 x 5 inch.  Now my drums I removed appear to have been painted. I cannot identify the numbers on the drums. The paint and what appears to be fading makes it difficult to decipher.

 

I tried attaching 5 pictures. 3 (pictures of the actual drum I removed) are too large to post here.  The remaining 2 pictures together exceed the max. So, I was only able to attach this one. I will add another post with the remaining rear-end pic.

 

The drums I have are finned. The ones I ordered are not.  Also the ones I ordered are shorter height-wise than the ones I removed.

 

Any advice at this point on how to get correct drums?  Is this a case whereby I will have to take measurements? Let me know please.

 

Eddie

[elane352]

Okay, here is the remaining picture that is small enough for me to post. Unfortunately the drum pics exceed the posting size maximum.

 

Eddie

[greg g]

Any numbers on the axle?

 

Mid 60s T birds had finned rear drums if I remember  correctly. 

[kencombs]

Since I don't have your drum measurements, all I can suggest is measure yours and compare to these:  https://www.speedwaymotors.com/Ford-Performance-M-1126-B-New-11-x-2-3-4-Ford-Brake-Drums,27028.html.

 

They have dual bolt patterns to fit Wagons/Broncos/Pickups as well as 'normal' cars. 

 

Cast numbers are not always reliable this long after they were manufactured as they could be replacements.  Also cast numbers don't always mean the finished product is only one part number as the same raw casting could be used for two or more bolt patterns or other differences.

 

 

[B1B Keven]

5 on 4 1/2  is Ford car.

[9 foot box]

   You might have a 68-73 Mustang or Mercury Cougar rear axle. I would look at drums for those cars. They used the same wheel cylinders as the trucks, but the trucks had 11” brakes and drums, larger bolt pattern axle, and wider axle than those cars. Rick D.

[elane352]

Thanks to everyone for responding.

[lostviking]

On 6/24/2023 at 10:20 AM, elane352 said:

Greetings,

 

I wanted to check with you all before making a 2nd mistake.  This posting is similar to my prior one (replacing brake shoes and wheel cylinders not realizing initially that i had a Ford rear end).

 

Now I want to replace the drums. I ordered drums for a 1978 Ford F100 given that I had installed wheel cylinders and brake shoes based on that year, make, and model as recommended from this site. The wheel cylinders and brake shoes are fine.

 

I erroneously ordered the wrong drums.  I have a 5 x 4.5 inch pattern on the truck now. My understanding is that the 5 x 4.5 is typically a Ford pattern. What I ordered appears to be likely 5 x 5 inch.  Now my drums I removed appear to have been painted. I cannot identify the numbers on the drums. The paint and what appears to be fading makes it difficult to decipher.

 

I tried attaching 5 pictures. 3 (pictures of the actual drum I removed) are too large to post here.  The remaining 2 pictures together exceed the max. So, I was only able to attach this one. I will add another post with the remaining rear-end pic.

 

The drums I have are finned. The ones I ordered are not.  Also the ones I ordered are shorter height-wise than the ones I removed.

 

Any advice at this point on how to get correct drums?  Is this a case whereby I will have to take measurements? Let me know please.

 

Eddie

 

Most camera's these days create pictures too large. I open them in Microsoft paint, the old one, and just resize them to 50%. At the same time it removes a lot of extra data the camera put into the file, you don't need that. I rename the files with sm for small on the end of the file name, so I still have the full size image also.

 

 

[Los_Control]

I buy cheap phones, I use them out in the shop & take them with me when going for a longer drive .... I have gone through 4 phones in the last 6 years.

Every phone I get takes photos to large for the forum. I just go into phone settings and adjust the size down .... then all photos are fine for the forum.

 

The phones seem to use the higher setting for a improved photo .... the lower settings look just as good.

 

Just saying if you adjust the phone, you will not need to resize them later.

[elane352]

I hear you all regarding the photo size and camera comments. I should have thought of that.

 

Much obliged ?