Right off the Ford print and lots of help from Steve Coniff we finely got them right
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Bob's Antique Auto Parts
Bob, Please publish the specs.
I need to replace one of my bushings. It seemed to have seized on the pin, and then the gear spun on the bushing. That one gear is really flopping around in there, to the point where the gear has worn the flywheel in one spot. Nothing serious on the flywheel, but definitely left a mark. All the gear teeth look good. What do I need to be aware of in looking for a new bushing?
You might be looking to replace that gear that the bushing spun in - believe it or not but the spinning action can over-size the I.D. of the gear.
Steve, I wondered about that gear. I guess I could measure the other two to get a close measurement on what the third one should be. Does anyone know what the hole in the gear should measure?
Here is one of the plates I made up a few years ago on a project that got derailed on what Ford "intended" as to design fits inside the transmission.
On a personal matter, I'd mic any new bushes as received to see that they are in range to begin with, because if they are too big or two small, then the bore in the gear means nada!
Bob, please advise what is different in the TG bushings that to other major vendors sell than the new ones you are having mfg.
First I will dig out the prints this am, I also do not want to slam any dealers for what they sell, we had a metallurgist check the ones on the market before we started all of this and they are not a true z bronze, we have one of the largest bearing company's in the U.S.A. making these out of true z bronze, the formula is why the price is higher than the ones on the market today, Steve Coniff and I have spent hours on this and I will not show the print for security reasons, due to Ford we will list the specs. today, Bob
Thank you Bob. Now we can start reaming the bushings the way Ford says to! I know Steve has been working on this project for years, and it gratifying to see that you have done this. Thanks a bunch. What puzzles me is, I bought my bushings in the early '60s from Ford Parts Obsolete in Los Angeles, and they must have had Z bronze back then, because I've not had a problem with them. The car now has over 50,000 miles on it.
The bushing print has been published on this forum many times in the past. I don't know what security has to do with it. How about posting a picture of the alloy certificate you got from the material supplier (or bearing company)?
There's been a couple of bushing suppliers claiming to sell Z-Bronze bushings for more than five years. If you place two bushings side by side, one made from common bushing bronze (C93200/SAE-660) and one claimed to be made from "Z-Bronze", You can't tell which is which.
We've had the "word" from some well known suppliers claiming their bushings are Z-Bronze and now you're saying they are not? How can we be sure of what is being supplied by anyone?