Who Made This Transmission Drum?

[Jerry VanOoteghem]

I picked this up in Hershey this year. It's not marked Ford anywhere. Just the part number and the date. I'm thinking J&M, but they usually have their name in the casting, don't they? Also, wondering why it was removed. It shows almost no wear or damage, I have not checked the balance yet.

Anyone know anything about who made it or its "reputation"?

Thanks!

[TrentB]

Hi Jerry,

As a point of reference, here is a photo of a NOS narrow brake drum. Note that it has both the name “Ford” in script and the factory number T-709 cast into the web of the drum. The one in your photo shows that it has the catalog number 3311 cast into the web. To my knowledge, Ford always used factory numbers in identifying parts at the factory, never catalog numbers.

Several people have made new drum castings over the years and attached them to used gears or shafts. Your drum appears to have a casting date (or a mold date) of January 1998. It may have been made by the late Bob Evans.

Technically, the factory number on my drum is T-709-AR. The T indicates the Model number, the 709 designates a transmission brake drum, A indicates that it was the narrow drum design used from 1909-1925, and the R indicates that this drum would be used for Repairs and continued to be supplied by Ford for service.

Respectfully Submitted,

Trent Boggess

[Jerry VanOoteghem]

Thanks Trent. I knew it wasn't genuine Ford, but didn't know just who may have made it. To your knowledge, and with respect to the departed Bob Evans, do you know if in use, these hubs have/had a good reputation? Assuming that it was truly an Evans product of course.

Since posting my question, I put the drum between ball bearing lathe centers. Not a true test of balance, but still, no "heavy side" seems to be apparent.

[J and M Machine]

I picked this up in Hershey this year. It's not marked Ford anywhere. Just the part number and the date. I'm thinking J&M, but they usually have their name in the casting, don't they? Also, wondering why it was removed. It shows almost no wear or damage, I have not checked the balance yet.

Anyone know anything about who made it or its "reputation"?

Thanks!

DSC06268.JPGDSC06267.JPGDSC06266.JPGDSC06265.JPG

Yes: We always have our name and batch and date in our drums. Only way to protect ourselves from brand X drums.


Most likely that is a drum made by Bob Evans using the Herman Harder Molds.

This drum you have shown is the reason we got into making the transmission drums as the quality isn't there nor the fit.
I remember what started it; I was trying to fit the replaceable clip for the brake drum lugs and they wouldn't stay on.

We had to purchase the prints from Ford and made all our drums exactly to the print including broaching the brake lugs which no one else offers.

[J1MGOLDEN]

I just put one in my 1917 T engine, they are perfect and still available.

You can buy it like that - All new or send your drum with a good shaft and they will put it together for you!

[Jerry VanOoteghem]

I picked this up in Hershey this year. It's not marked Ford anywhere. Just the part number and the date. I'm thinking J&M, but they usually have their name in the casting, don't they? Also, wondering why it was removed. It shows almost no wear or damage, I have not checked the balance yet.

Anyone know anything about who made it or its "reputation"?

Thanks!

DSC06268.JPGDSC06267.JPGDSC06266.JPGDSC06265.JPG

Yes: We always have our name and batch and date in our drums. Only way to protect ourselves from brand X drums.


Most likely that is a drum made by Bob Evans using the Herman Harder Molds.

This drum you have shown is the reason we got into making the transmission drums as the quality isn't there nor the fit.
I remember what started it; I was trying to fit the replaceable clip for the brake drum lugs and they wouldn't stay on.

We had to purchase the prints from Ford and made all our drums exactly to the print including broaching the brake lugs which no one else offers.

I checked the OD runout of the drum, it's off .010 TIR with the shaft running with zero runout. There is less than .001 face runout. I can take a small cut off the OD to true it up. There's lots of stock left.

Are you saying the drum lugs tend to be undersized on the Evans drums? Might explain why 3 are missing on my example!

[Mopar_man]

I have J&M Drums in my car. Along with a lot of their machine work. I can not say enough good things about them. If you want your machine work done right then they are the guys to do it. Their drums went together like a Waltham watch. Riverside Maximus to be exact.

[J and M Machine]

"Are you saying the drum lugs tend to be undersized on the Evans drums? Might explain why 3 are missing on my example!"

An Affirmative Yes:

Most frustrating thing for us rebuilding engines is when the parts don't fit or fail.
As I mentioned these were the reason we started to make them the right way.

[Scott_Conger]

John

and we are appreciative of that fact

thank you