CAPRI PERANA - HELP!!!!!

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kiwicapri
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Joined: Tue 06 Nov 2007, 02:48

Re: CAPRI PERANA - HELP!!!!!

Post by kiwicapri » Mon 09 May 2016, 11:21

Hi PERANA MAN.

The Falcon/Fairmont/Fairlane axels are all the same unless it came out of a GT with a 9".
One side longer than the other to accomidate the BW off set head.

All 25 spline until the later when the M78 series BW came out. They then went to 28 spline and slightly bigger CW and Pinion, so they are NOT interchangable.

Yes the axles are thicker than a Capri axel, but they are tappered. The tapper allows the axel to "wide up"., They have bigger beraings, so they will not fit a Perana housing, BUT can be machined to fit. This requires them to be turned parralel without a taper, shortended and re splined.

Perana axels are as thick as a standard Capri axel- The diffrence is, they are NOT tappered, the end where the spline is is slightly steped/undercut. IF the axels were thicker than Std Capri axels, the bearings would not fit and the bearing retainers would not be able to be used, they would not mate up to the 3.0 backing plates used.

Capri axels can NOT be used. They are 16 spline axels,although the long one is longer than the short side on a Perana diff, they are to small in diametre, so they can not be resplined with long enough splines.

Agree with what John said, BG had ford fit them. But that still does not answer the question, which im sure lies in a Ranchero.WHAT car ussed this same CASTING with "SA" on it.

Cheers

Wayne

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ZA Perana
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Re: CAPRI PERANA - HELP!!!!!

Post by ZA Perana » Mon 09 May 2016, 11:46

kiwicapri wrote:Hi PERANA MAN.

The Falcon/Fairmont/Fairlane axels are all the same unless it came out of a GT with a 9".
One side longer than the other to accomidate the BW off set head.

All 25 spline until the later when the M78 series BW came out. They then went to 28 spline and slightly bigger CW and Pinion, so they are NOT interchangable.

Yes the axles are thicker than a Capri axel, but they are tappered. The tapper allows the axel to "wide up"., They have bigger beraings, so they will not fit a Perana housing, BUT can be machined to fit. This requires them to be turned parralel without a taper, shortended and re splined.

Perana axels are as thick as a standard Capri axel- The diffrence is, they are NOT tappered, the end where the spline is is slightly steped/undercut. IF the axels were thicker than Std Capri axels, the bearings would not fit and the bearing retainers would not be able to be used, they would not mate up to the 3.0 backing plates used.

Capri axels can NOT be used. They are 16 spline axels,although the long one is longer than the short side on a Perana diff, they are to small in diametre, so they can not be resplined with long enough splines.

Agree with what John said, BG had ford fit them. But that still does not answer the question, which im sure lies in a Ranchero.WHAT car ussed this same CASTING with "SA" on it.

Cheers

Wayne
The answer doesn't lie in a Rachero, those shafts are completely different too. Tried those when I was looking for a riht hand shaft.

Also, afraid to say the thickness of the Perana shafts is vastly different to a 3 litre Capri, I bought one genuine Perana shaft and compared it to a 3 litre, very different. On mine I changed the bearings, had to machine the shaft to fit the bearing on.

Will look into all this when I am home this evening.
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Can-Am ZN
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Re: CAPRI PERANA - HELP!!!!!

Post by Can-Am ZN » Mon 09 May 2016, 14:54

kiwicapri wrote:...I am very interested to see what casting numbers and markings are on the diff in the OPAL, Can Am and also the Nomad...
I have a Nomad rear axle stored in my garage and cannot see any visible numbers or markings...apologies for the bad lighting in the pics.
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ZA Perana
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Re: CAPRI PERANA - HELP!!!!!

Post by ZA Perana » Mon 09 May 2016, 15:27

Nomad and Can Am diffs are also not one in the same....
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Can-Am ZN
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Re: CAPRI PERANA - HELP!!!!!

Post by Can-Am ZN » Mon 09 May 2016, 17:16

ZA Perana wrote:Nomad and Can Am diffs are also not one in the same....
Yes, I think the Nomad has a considerably shorter final drive ratio...
Gavin

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"The sad reality about the uneducated is that they don't know that they don't know." - Me

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ZA Perana
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Re: CAPRI PERANA - HELP!!!!!

Post by ZA Perana » Mon 09 May 2016, 19:49

Can-Am ZN wrote:
ZA Perana wrote:Nomad and Can Am diffs are also not one in the same....
Yes, I think the Nomad has a considerably shorter final drive ratio...
Among many other differences.
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ZA Perana
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Re: CAPRI PERANA - HELP!!!!!

Post by ZA Perana » Mon 09 May 2016, 19:57

kiwicapri wrote:Hi PERANA MAN.

The Falcon/Fairmont/Fairlane axels are all the same unless it came out of a GT with a 9".
One side longer than the other to accomidate the BW off set head.

All 25 spline until the later when the M78 series BW came out. They then went to 28 spline and slightly bigger CW and Pinion, so they are NOT interchangable.

Yes the axles are thicker than a Capri axel, but they are tappered. The tapper allows the axel to "wide up"., They have bigger beraings, so they will not fit a Perana housing, BUT can be machined to fit. This requires them to be turned parralel without a taper, shortended and re splined.

Perana axels are as thick as a standard Capri axel- The diffrence is, they are NOT tappered, the end where the spline is is slightly steped/undercut. IF the axels were thicker than Std Capri axels, the bearings would not fit and the bearing retainers would not be able to be used, they would not mate up to the 3.0 backing plates used.

Capri axels can NOT be used. They are 16 spline axels,although the long one is longer than the short side on a Perana diff, they are to small in diametre, so they can not be resplined with long enough splines.

Agree with what John said, BG had ford fit them. But that still does not answer the question, which im sure lies in a Ranchero.WHAT car ussed this same CASTING with "SA" on it.

Cheers

Wayne
Hi Wayne.

The regular 6 cylinder Fairmont in SA was fitted with a SA made Borg Warner diff. I have an example of one of these shafts and they are different to not only the Perana shaft but also different to the Ranchero as fitted with a 2.92 diff. The Ranchero diff has the same basis casing as the Capri though.

I find it strange that some here are saying the diff is made up of Ford parts when in fact it was developed much as the Can Am diff was, by Borg Warner and not Ford SA and as such shares very few parts with the Ford cars of the era, none of which barring the Fairlane 500 and later the GT had LS diffs in them, both of these were 9 inch diffs.

Perana axles as mentioned are thicker than standard axles, there is a sizeable difference and its also the reason the bearing that fits onto the shaft is different.
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kiwicapri
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Joined: Tue 06 Nov 2007, 02:48

Re: CAPRI PERANA - HELP!!!!!

Post by kiwicapri » Mon 09 May 2016, 23:49

Hi Perana man.
Great news, so we can use a Ranchero Case/casting? What size is the axel tubes on the Ranchero case?

So I am clear, what you are saying is the axle/half shafts in a Perana diff are thicker than a Ranchero axel? Do you mean all the way along, or do you menan just before the spline? Do they not share the same spline count? 25 splines? and the same carrier/LSD with the same CW and pinion?

I have several axels at home, including the two I took out of my Perana Diff. I will put up pictures for comparison so we can all see what we are looking at. The axles are simply re machined stock items. 4 stud instead of 5, shortened, machined and re splined. Pictures to come.

I agree that SA BorgWarner may have made the rear ends for BG, and had Ford locate them in the cars at the factory before being transported from PE, that would make sense as they probably had the jig to locate the bearing carriers, radius arm brackets, and leaf spring saddles, BUT they are a modified cut up BW unit of some sort, covered in Capri and Cortina parts, that MUST have been supplied by Ford. In other words, a spec build. An SVO part. What ever it was BW/FORD/BG used, it had to be from a Car pre 1970? Agreed?

Also, lots of aficionados refer the to the Perana Diff as a X.1B, this is not the case. it is a X.19.

As far as I am aware, and the Factory books tell me, the ranchero/Ute and Fairlane with 302W engines all had 2.93:1 diffs. Not all had LSD, but LSD was optioned in the Fairlane.

I will attempt to scan and post the relevant page this weekend. We are still unpacking so things are a bit up side down in the hose at the moment.

Man this is very interesting stuff.

Wayne

kiwicapri
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Joined: Tue 06 Nov 2007, 02:48

Re: CAPRI PERANA - HELP!!!!!

Post by kiwicapri » Mon 09 May 2016, 23:55

Also, Thank you Can Am ZN- Nice pictures. YES that is a BW diff. What is written/stamped on the tag attached to one of the top cover bolts?

Also, what do the tubes measure in diameter?

The casting ring, on the side of the main case has a raised ring, what size is this in diameter?

Very interesting stuff.

Wayne

kiwicapri
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Joined: Tue 06 Nov 2007, 02:48

Re: CAPRI PERANA - HELP!!!!!

Post by kiwicapri » Mon 09 May 2016, 23:59

Also, lots of aficionados refer the to the Perana Diff as a X.1B, this is not the case. it is a X.19.

What I meant to say was, lots of aficionados refer the to the Perana Diff as a X.B1, this is not the case. it is a X.91.
I also have one from a Australian XW Fairmont 302, with narrow gauge axel tubes(light duty) which has cast on top "X" and X.45, so all the markings do hold the answer and someone MUST have stashed away a BW book with casting numbers etc. in it.

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