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By LON - 14 Years Ago
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Just about to do another FMX / FOM conversion. I have to ask a question ??? Is the input shafts the same on early 54 FOM as late 57 ??? I sold the 2 spare late model FOM I had ,now I need the front shaft from one . A mate has an early 54 auto that I can have .Just want to make sure before I send them off to be rebuilt .I have a late model convertor and a front pump . Still chasing a late model flexplate . Lon
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By aussiebill - 14 Years Ago
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LON (8/24/2011)
Just about to do another FMX / FOM conversion. I have to ask a question ??? Is the input shafts the same on early 54 FOM as late 57 ??? I sold the 2 spare late model FOM I had ,now I need the front shaft from one . A mate has an early 54 auto that I can have .Just want to make sure before I send them off to be rebuilt .I have a late model convertor and a front pump . Still chasing a late model flexplate . Lon lon, i would have late FOM input shaft, still no flexplate, boy they are scarce now.
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By LON - 14 Years Ago
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Thanks Bill , If it turns out the early 54 is different I will buy the shaft from you . Flex plates are hard to find . When I do find one I am going to approach an engeering / laser cutter shop to see what the cost is to have them made ???? I don't think I would have any trouble selling them . Lon
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By Glen Henderson - 14 Years Ago
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Hey Lon, I have one left, I don't really want too get rid of it. But if you want to have it reverse engineered, I will be glad to loan it too you. I think that Mac's has the std shift ring gears, so it should not be that hard to make something like the Flat o matic C4 flexplate.
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By LON - 14 Years Ago
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Glen , Thanks for the offer .Doing a bit of research at present on getting a ring gear laser cut. It then has to be heat treated .I can also get the centre section of the flex plate laser cut . The problem is having the centre bit pressed so it has all the factory lumps & bumps in it . Than the whole box & dice has to be welded & balanced . I will keep you posted if I can come up with a reasonable price . Don't think I would have any problems selling them ??? Lon PS . Good luck with Columbus ,whatever way you decide .
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By aussiebill - 14 Years Ago
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LON (8/25/2011)
Glen , Thanks for the offer .Doing a bit of research at present on getting a ring gear laser cut. It then has to be heat treated .I can also get the centre section of the flex plate laser cut . The problem is having the centre bit pressed so it has all the factory lumps & bumps in it . Than the whole box & dice has to be welded & balanced . I will keep you posted if I can come up with a reasonable price . Don't think I would have any problems selling them ??? Lon PS . Good luck with Columbus ,whatever way you decide . Lon, its allways hard getting something remade in limited numbers , especially here, i have had some things done over the years, but majority of others were just out of the financial question. I hope it works, regards bill.
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By marvh - 14 Years Ago
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Lon:
Dennis Carpenter sells new ring gears for the automatics. Auto's use a 146 tooth ring gear; part number EAA-6384-A USD $20.00
http://www.dennis-carpenter.com/cars.php
marv
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By PF Arcand - 14 Years Ago
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Lon: RE auto trans parts; might try a guy in the eastern states, name is Edwards, sorry can't find my full info, but apparently he has a warehouse full of vintage auto trans parts. May have Flex plates? Try Hemmings or maybe someone here can come up with an address etc.
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By aussiebill - 14 Years Ago
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marvh (8/25/2011)
Lon:
Dennis Carpenter sells new ring gears for the automatics. Auto's use a 146 tooth ring gear; part number EAA-6384-A USD $20.00
http://www.dennis-carpenter.com/cars.php
marv
Marv, i,m 100 percent sure they are std trans ring gears, auto trans are more teeth on bigger diameter and a lot thinnner,
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By Glen Henderson - 14 Years Ago
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I've had a couple PM"s about the difference in Y block flexplates, so I though I would post a pic on Lon's thread. 
The one on the right is a 57 and the one on the left is 58 and later. Hope this clears up some questions for some off you guys.
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By carl - 14 Years Ago
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Thanks Glen, i will copy the photo for future reference Carl
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By Ol'ford nut - 14 Years Ago
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So- if I understand the one on the right is getting hard to find. What is a good one worth?
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By marvh - 14 Years Ago
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aussiebill (8/25/2011)
marvh (8/25/2011)
Lon:
Dennis Carpenter sells new ring gears for the automatics. Auto's use a 146 tooth ring gear; part number EAA-6384-A USD $20.00
http://www.dennis-carpenter.com/cars.php
marv
Marv, i,m 100 percent sure they are std trans ring gears, auto trans are more teeth on bigger diameter and a lot thinnner,
Bill:
I just counted the teeth on the 58 auto flex-plate for V8's and they are 148 teeth. You are correct in that the ones carpenter is selling are std trans ring gears or 6 cyl automatics.
thanks marv
This appears to be the correct tooth count and diameter. I will mic a flex-plate in the morning for more info.
http://www.rockauto.com/catalog
1958 : FORD : COUNTRY SEDAN : 4.8L 4786cc 292 cubic inch V8 2BBL : Transmission-Automatic : Ring Gear
ATP Part # ZA547 {#PMB6384A} RIng Gear Outer Diameter=15.007" Inner Diameter 14.013" Pitch=10/12 Width=.370" Teeth=148 Chamfer=NONE
Automatic trans. CAD$19.39
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By oldcarmark - 14 Years Ago
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| So- if I understand the one on the right is getting hard to find. What is a good one worth? |
It would be the one on the left.The one on the right is the early style available as a repro from several suppliers
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