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Old 01-21-2012, 07:39 PM   #1
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Default Stupid nut size for stupid PPF bolt

So I just pulled my motor and tranny and put it back.

The PPF bolts onto the diff with two bolts.

The rearmost bolt does not thread into anything so I assume some stupid nut is supposed to hold onto it place where it pokes out above the diff.

What is the size of that stupid nut? They didn't have that shizat at home depot.


Side queszation. What is the tip/trick to get the shifter to sit in the middle of the shifter hole. My shifter is kinda sitting towards the driver's side which feels kinda wierd.
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Old 01-21-2012, 07:43 PM   #2
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The tip for getting the shifter to sit in the middle is to correctly install your engine and transmission. I don't see how it could not be centered. There may be a bit of adjustment in the PPF if you loosen the bolts, adjust the trans whichever way, and then tighten while someone holds it in place. But there can't be whole lot of play in there.

You sure your engine mounts aren't sitting on something? Did you use the engine mount "cover" things?

As for the PPF, I thought that "nut" was part of the PPF. As in, welded to it. Or at least press fit.

Last edited by FRT_Fun; 01-21-2012 at 07:53 PM.
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Old 01-21-2012, 07:53 PM   #3
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Quote:
Originally Posted by FRT_Fun View Post
The tip for getting the shifter to sit in the middle is to correctly install your engine and transmission. I don't see how it could not be centered. There may be a bit of adjustment in the PPF if you loosen the bolts, adjust the trans whichever way, and then tighten while someone holds it in place. But there can't be whole lot of play in there.

As for the PPF, I thought that "nut" was part of the PPF. As in, welded to it. Or at least press fit.
There is a nut for the frontmost bolt. Not the rear.
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Old 01-21-2012, 07:58 PM   #4
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Just for you, Faeflora, I'm going outside in this 5F weather to check on this and get you a picture. BRB.
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Old 01-21-2012, 07:59 PM   #5
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Also why did you remove the PPF at the diff?
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Old 01-21-2012, 08:03 PM   #6
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Yeah, Faeflora, you are mixed up bro after looking at how my PPF was.

http://virkki.com/jyri/miata/ppf/

Reverse of this.
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Old 01-21-2012, 08:43 PM   #7
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Quote:
Originally Posted by FRT_Fun View Post
Also why did you remove the PPF at the diff?
I have no frikken clue. I guess because it seemed like a good idea at the time. :|


Quote:
Originally Posted by blaen99 View Post
Yeah, Faeflora, you are mixed up bro after looking at how my PPF was.

http://virkki.com/jyri/miata/ppf/

Reverse of this.
?????? OK well the way my ---- is, the rearmost bolt does not screw into anything.
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Old 01-21-2012, 08:47 PM   #8
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Take bolt to your nearest hardware store,
Test nuts,
Profit

Only solution you've got then, bro. Unless you plan on ordering them online and waiting several days for them at least, you'll have to go to the hardware store anyways.
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Old 01-21-2012, 09:03 PM   #9
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Quote:
Originally Posted by blaen99 View Post
Take bolt to your nearest hardware store,
Test nuts,
Profit

Only solution you've got then, bro. Unless you plan on ordering them online and waiting several days for them at least, you'll have to go to the hardware store anyways.
Quote:
Originally Posted by Faeflora View Post
They didn't have that shizat at home depot.
...
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Old 01-21-2012, 09:13 PM   #10
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Quote:
Originally Posted by Faeflora View Post
...
Okay, my sense of humor failed to come across on the internet (No tone of voice to reflect sarcasm ftl), and I do apologize for failing to express that in my previous post.

Fae, there are special nuts on the PPF. They have specialized splined collars to inset into it/fit into the PPF. You won't find them at a hardware store. They are specialized Mazda nuts for the specific PPF application. However, they also take a good deal of force to remove - they are, as another poster mentioned, basically "welded" into the PPF because of how they fit. I cannot imagine how you got them out and misplaced them - if you removed them, you would have had to have worked at it with a hammer at least as they are press-fit with a splined collar. This is what FRT and I have been getting at in this thread.

Last edited by blaen99; 01-21-2012 at 09:24 PM.
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Old 01-21-2012, 09:30 PM   #11
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Are you sure you are using the correct bolts?
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Old 01-21-2012, 09:31 PM   #12
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Stupid nut size for stupid PPF bolt-p8100156.jpg  
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Old 01-21-2012, 11:58 PM   #13
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yeah I just took my PPF off a week ago. There are two nuts on each bolt that must come out to remove the PPF from the rear diff. They have a shoulder on them that goes into the PPF...a regular ol nut might work but it will be THE SUCK. Don't do it. Find the correct nut.
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Old 01-22-2012, 12:22 AM   #14
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Call me crazy, but aren't the pressed nuts clearly visible in the picture he just posted? I'm not at home to check, but I did this not to long ago. If I remember right one bolt is larger than the other and this was important in putting it together.
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Old 01-22-2012, 01:40 AM   #15
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I think hey are all the same diameter


Per the link, "the bolt closest to the diff simply screws out". Mine slides inand out. No screwing. Ha
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Old 01-22-2012, 01:49 AM   #16
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Quote:
Originally Posted by Faeflora View Post
I think hey are all the same diameter


Per the link, "the bolt closest to the diff simply screws out". Mine slides inand out. No screwing. Ha
Both bolts on the differential side have "press-in" nuts. The 2 nuts are identical as far as I know. So you have one but lost the other.

You should have told me last week since I was at a junk yard pulling a diff.

Anyways, as far as I know they aren't sold separate of the PPF.
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Old 01-22-2012, 01:52 AM   #17
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Why do you break the stupidest ****
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Old 01-22-2012, 02:03 AM   #18
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Quote:
Originally Posted by viperormiata View Post
Why do you break the stupidest ****
Probably everyone did stupid ---- at one point. We just didn't make a thread about it
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Old 01-22-2012, 02:14 AM   #19
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OMFG if i lost that ---- well fuc that. I cannot gay out and skip this ----. I broke my old ppf at 250hp so i dunwanna f around on this now. Arrrgggggg

Thing is if there is indeed a press in threaded nut thing, it would have to go into the diff at the top. There is no room as it is tight fit on the bottom.

Im gonna use any old fukin bolt and nut that will sorta fit if i cannot get thi shi figured out
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Old 01-22-2012, 02:14 AM   #20
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Are they all the same length? Is that front bolt that's already in perhaps a bit longer and supposed to go in the rear hole?
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