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diff bolts
theconrodkid - 13/1/07 at 06:28 PM

i got a rear loader escort diff,what threads are the prop/pinion bolts?
they are not metric fine or coarse,i was told they were unf,not that either or the unf bolts i bought arnt unf?
i tried them against some seat belt bolts and they are different threads.
any ideas?


coozer - 13/1/07 at 07:28 PM

Oh dear, if you don't have them your in trouble.

Ford don't stock them anymore and nobody else makes them. I think they are unf but you need screws, and there are only bolts available with the correct thread.

Get yourself down to the scrap yard and take some off a Sierra. QUICK!!


mark chandler - 13/1/07 at 08:36 PM

I think in general there are two pitches with UNF, 12 Teeth Per Inch (TPI) and 16 TPI.

Even if you have UNF they still might not be correct, thank goodness we are now nearly all metric when you add in BSF etc .... it becomes a minefield

[Edited on 13/1/07 by mark chandler]


goodall - 13/1/07 at 08:40 PM

or the other thing you could do is buy some bolts of the correct standard new, there must be somewhere local should stock the right spec in metric


goodall - 13/1/07 at 08:40 PM

or the other thing you could do is buy some bolts of the correct standard new, there must be somewhere local should stock the right spec in metric


iank - 13/1/07 at 08:52 PM

Namrick's table of UNF tpi spanner sized etc is here:
http://www.namrick.co.uk/boltspec.asp

They stock set screws in UNF in high tensile S grades (equivalent to 8.8)
http://www.namrick.co.uk/browse.asp?PCID=5

But without knowing the size/length I don't know if they have what you need.


DIY Si - 13/1/07 at 08:53 PM

If you can't find any of the old bolts, just drill and tap some new ones?


theconrodkid - 13/1/07 at 09:00 PM

burtons do them,they say m10x1......ive tried that already and it wont go in,the 3/8 unf is loose in the threads .
drill and tap is out of the q,its axle out and thats a major job


DIY Si - 13/1/07 at 09:02 PM

IS there any one local who is into old fords that may know/ have some lying about?


goodall - 13/1/07 at 09:09 PM

drive flange bolts of anything will do im sure, even standard bolts if you not planning on doing any hard driveing


theconrodkid - 13/1/07 at 09:23 PM

ive ordered them from burtons,is there such a thing as a finer than 1mm pitch?
anyhow i got my digidash to play with so at least i,m semi-happy
cheers for your replies chaps


[Edited on 13/1/07 by theconrodkid]


procomp - 13/1/07 at 09:40 PM

Hi they are deinetly metric and NOT unf.

They are the same thread as the cvh/zetec flywheel bolts.

Many people mistakingly fit unf and f##k up the thread meanig the flange is not safe to use again.

cheers matt


theconrodkid - 13/1/07 at 09:45 PM

cheers Mat


bob - 13/1/07 at 11:52 PM

John i'll bring the aladins cave box of bolts over tomorow

I have a feeling you may be lucky


Avoneer - 14/1/07 at 12:20 AM

The front loader engish is definatley UNF bolts though.

Not that that helps in any way, but I feel better for sharing it.

Thanks,

Pat... (I need some therapy)...


02GF74 - 14/1/07 at 01:21 PM

quote:
Originally posted by coozer

Ford don't stock them anymore and nobody else makes them. I think they are unf but you need screws, and there are only bolts available with the correct thread.




are they different to front loading (english axle) then? ???

for sure they are fine pitch, I would guess UNF.

if you know the dia/pitch, I can try my local fastenere place.

I don't think ou can get a nut on the back sou you would need to tap with anotehr fine as the flange is not the thick.