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Those bolts might work, but it wouldn't match the other pressed in studs.
I found this part number in a Ford "Standard Utility Parts" catalog that has a diagram that appears to match what I'm after:
350609-S8
It is a similar part number to the bolt, but I suspect this one will return press-in studs. Only problem is I don't know where to look as well as you all.
I had found that part number too. It is one of the reasons I keep asking you for dimensions. It's listed as fitting:
64 and up B-F100/750,C500/600, P350/500 4 speed M/T.
64 and up P350/500 with 3 speed M/T.
Bolt (flange to coupling shaft flange yoke)
7/16" - 20 X 1 5/8" long not including the square head. The last 5/8" being the threads. So that would mean a full inch of shank.
That is very close. When I measured the stud (somewhat awkwardly since it was still installed) the size was definitely 7/16"-20, but I measured the overall length (not including head) as 1 1/4".
Perhaps the extra 1/2' will be okay. Or I could trim it.
If I'm going to just go with a bolt, I might just look for a high grade generic fastener, rather than some obscure Ford part that is just a bolt.
That is very close. When I measured the stud (somewhat awkwardly since it was still installed) the size was definitely 7/16"-20, but I measured the overall length (not including head) as 1 1/4".
Perhaps the extra 1/2' will be okay. Or I could trim it.
If I'm going to just go with a bolt, I might just look for a high grade generic fastener, rather than some obscure Ford part that is just a bolt.
The extra 1/2" would all be in the shank then. Which wouldn't be close enough threads to tighten up the nut and yoke. Remember having that correct diameter and length shank is important unless there is some other guide between the two flanges that mates them perfectly straight and even. If no other guide is there and going generic and no shank, I would replace two out of the four. Opposing corners to keep the driveline balanced there. 2 would have aligning shanks and 2 without. Example would be out of the 4 corners, I'd do left lower and right upper.
It is a similar part number to the bolt, but I suspect this one will return press-in studs. Only problem is I don't know where to look as well as you all.
Our kingdom kings are ford house employees.
Sometimes they make me cry too as they make it seem easy.
A Poe Boy gotts Poe Ways, but to reiterate what Jeffaffa said, don't be Johnny Q. Public and "rigg" that stud, with all do respect.
On a side note, is there some trick to the numbering on the schematic I posted? It seems like the numbers on the diagram are fairly useless except as a descriptor for forum discussions. In other words, is there a way to use the schematic number to determine an actual part number?
From your picture, it appears that maybe the head of the bolt is clipped so as to prevent rotation. Is this the case? Post a picture of the one with the "bungled" threads.
Remember having that correct diameter and length shank is important unless there is some other guide between the two flanges that mates them perfectly straight and even. If no other guide is there and going generic and no shank, I would replace two out of the four. Opposing corners to keep the driveline balanced there. 2 would have aligning shanks and 2 without. Example would be out of the 4 corners, I'd do left lower and right upper.
I quote myself.
Originally Posted by mrpotatohead
From your picture, it appears that maybe the head of the bolt is clipped so as to prevent rotation. Is this the case? Post a picture of the one with the "bungled" threads.
A clipped head? In the Standard Parts Book I found a rounded head stud with the head clipped. Part number 385553-S2. 1/2" x 13,Not counting the threads it's 1 1/4" long. 29/32" of threads. Klimesh Motor Sales shows as having 12 of them.
Klimesh Motor Sales
563-562-3241
Originally Posted by gray035
It's definitely a pressed in stud that I have now, but I don't see any reason why a bolt wouldn't work if i replaced all four.
I will look into ordering the 353515-S8 bolts and replace all of them so they match.
1st off, notice the "Ford typical" driveshaft picture you originally posted was for F100 AND F250. Those pics are meant for giving us Parts Men the Basic Numbers. Not necessarily to look or be exact. You have a F250 and I believe that 353515-S8 is actually correct for a F100. The pic you posted of a "similar" set up shows studs that appear to be 7/16" threaded but with I'm guessing a 1/2" shank. Look at the pic I posted of the 353515-S8 and you'll see the shank is the same diameter as the threads. You use those and there will be no pilot to mate the two yokes perfectly. If you want to do it your way and use bolts then you better use bolts that are the same size as the flange holes. And you still might end up with driveline vibration.
I wish you would have posted pics of your bungled stud a long time ago.
I believe the threads on the stud are beyond repair. Someone long ago put the wrong size nut on it and it vibrated all around for years, ruining the threads, especially in the area where they would need to grab the best. I'll post pics of that later too.
With regard to alignment, and the shanks on the studs, luckily there is an alignment guide at the center of the bolt on portion (it's a large precision circle that fits into a lip on the bolt-yoke), so I think alignment will not be an issue. That said, I think I will still take JAFAFFA's suggestion and replace only two of the studs with bolts on opposite corners.