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Mustang Technical Discussion > Pre 1973 > XF stub axle? > Community Forums > Mustang Forum Australia - Mustang Tech

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gary70au
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Howdy all, hope everyone had a good christmas and new years break.

I think this has all been covered before but i couldn't dig it up with the search feature.

Some time ago i got hold of some of the alloy XF brake calipers. I cleaned them up and fitted new seals. I then found that they don't fit Argh

What i need to know is, will xf stubs change the track of my 67?

Will they change the ride height?

What is the difference between my 67 discs and xf ones? (should i get xf ones or put mine on xf stubs?)

What is the part number of the tie rod ends i will need to fit the xf stubs (or what car do they come off, just xf ones?)

Will my 67 brake lines fit the xf calipers?

Any info would be greatly appreciated

Cheers

Gary


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scott66stang
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On a 67 that will all change a bit but not as much as on a 64- 66, i doubt you will notice. XB-XC is the closest match i think. Suspect has done alot of research and measuring with XY-XF stubs and will most likely confirm this.


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moe
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I thought the XF stub axles were different between the sedans and the wagons/fairlanes, due to the LWB.


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gary70au
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i saw that somewhere whilst searching Moe, not sure if it is different though.

I would have assumed any wheelbase change on a wagon or the fairlane would have been achieved with relocation of the rear axle.

I wouldn't be considering changing them if the calipers had bolted straight onto my originals. The lower mounting bolt hole is the issue (much smaller on the mustang.


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moe
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here you go gary70au:
www.hoppers.com.au/falconbrakes.htm


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S[_]SPECT
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There is quite literally, bugger all between a 67 stub and XC stub as far as height and ackerman go.. so it is the most suitable fit I have found.. (but i havent got my hands on a set of XA or XB stubs.
Between Scott and myself I have been able to measure up XY, XC, XD and XF, as well as 67 drum brake stub.
I have had a brief look at Tims 68 dics stubs and they look the same as the XC ones.

The only major variation is the bearing size.. they are larger on the xc stub.

I stayed away from XB due to the mid year change and got XC stubs. XF calipers have bolted straight up to it, and im using XF discs. I ditched the XF stubs due to the raised height, incorrect ackerman and non matching taper.

I dont have all the measurements on me as Tim has them... ( he was going to make digital versions.. hey Tim.. Poke )

I cant comment on track as yet, as I have not fitted yet.. but will do when its all done.. Tech article coming..

AS for lines.. its about $40 for new ones.. cheap insurance in my book..


Cheers,
Birchy...
Dodgy Bros. Customs

Suspect 67 - www.mustangtech.com.au.../t=52.html

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gary70au
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Thanks for all the info guys.

Looks like i might have to dig up a set of xc stubs.

Suspect, was going to get new lines just wasn't sure whether i needed to buy 67 ones or xf ones.

Cheers

Gary


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ozbilt
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gary70au wrote


Suspect, was going to get new lines just wasn't sure whether i needed to buy 67 ones or xf ones.


You always get the flex brake lines to suit the calipers you are using & route them the same way the car they came off.


Kerry

It is easier to get older than it it is to get wiser

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Shaunp
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Xy on stubs will raise the ride height by 3/8. There are 3 different tie rod ends on falcons ie tapers are different, causes no issue unless you buy "some" aftermarket racks. You just need to buy the outer rod ends to suit the stubs. Some racks don't use standard ford type ends. The ackerman angle is different on long wheel base falcons, wagons Fairlannes etc. They have less ackerman, due to the wheel base. But any will fitt. XF are by far the strongest. All calipers fit all stubs. XY -XF
Not sure about the ackerman angles, It's common practise on drift cars to reduce it, I'm using xy stubs and xf claipers because I have some lieing around. I may try the xf stubs and see what differance they make. The original ackerman angle would of been for cross plys which have much different scrub angles to modern tyres so it probably matters little. In fact reducing it may be a good thing with modern tyres. Long wheel base ones are about 3/8 less ackerman, but this also lines up somewaht with Oz Falcons have radials from new as well. I suspect radial need less ackerman due to scrub angles. Modern Low profile tyres would be way different to what a 67 came with with respect to tyre scrub.


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S[_]SPECT
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Shaun, (saw your post on the other site, to which I cant post)
Just so your aware, XC stubs are not taller at all. They are bang on for 67 stubs. I havent had a chance to measure XA-XB, but all the others we've measured are taller. XC arent. Steering arm is in correct location as well.
Original tie rod has correct taper for XC.
Only thing that appears to be different for XC is the bearing size (Larger than pre XB).

EDIT: Hey Tim, have you digitised those measurements yet ? Poke


Cheers,
Birchy...
Dodgy Bros. Customs

Suspect 67 - www.mustangtech.com.au.../t=52.html

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Shaunp
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Yeah, I don't have any XC ones to check, but the others all seem 3/8 taller. Not that this is a real big deal, if you drop the spring height it will change the camber curve like shelby drop, just not as much. Not sure why the XC ones were different. The ackerman angle is certainly different on LWB and later cars. Wheel base has an effect on this, but I suspect they may have reduced the angle a bit when radial tyres were fitted from new, due to different scrub angles.

Outer tie rods should be the same XY-XC then XD-XG are larger taper. 67 ones are smaller than XY-XC. XT - Early xw have smaller tie rods. Idler arms change at XA as the drag link pin is a different size.


Last edited by Shaunp on Wed Jan 19, 2011 2:48 am; edited 1 time in total

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S[_]SPECT
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Yep, I got SWB XC and they are virtually identical.
If anyone in Perth has XA or XB, can I grab them for 15 mins to measure up?


Cheers,
Birchy...
Dodgy Bros. Customs

Suspect 67 - www.mustangtech.com.au.../t=52.html

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Shaunp
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I've got XA ones which are the same as the XY ones I have.

Outer tie rods should be the same XY-XC then XD-XG are larger taper. 67 ones are smaller than XY-XC. XT - Early xw have smaller tie rods. Idler arms change at XA as the drag link pin is a different size.


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bages
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not wanting to hijack can anyone point me in the direction for similair info for a 66?


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moe
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bages wrote
not wanting to hijack can anyone point me in the direction for similair info for a 66?

Have you priced a set of 66 mustang ones locally??


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