Axle shaft identification

Brian c

New member
Pictured are two mk1 cortina axle shafts, the left side shaft is GT/Lotus type and the right hand shaft is standard mk1 Cortina. Note stud length, flange thickness and offset, bearing retainer width and axle shaft length.
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Taken from Facebook Aug 2020

Scott Simpson
Just a quick heads-up here chaps, GT’s and Lotus didn’t have the same halfshafts. Lotus versions were stronger, were machined full length and are identified by the thicker hub flange. That’s the part which the studs pass through, in case you were wondering! AJT’s have a name cast in the centre of the hub flange, I think it says something like Bower.

Bruce Miles

I have spent an afternoon in the workshop.
40Axles.
Imformation as follows
Quantity of each.
Axle length overall outside of flange to tip.
Flange thickness.
Imperial measurements
8x 26 5/16 .35
13x 26 1/8 .35
6x 25 9/16 .29
9x 25 7/16 .35
4x 25 7/16 .35 Lotus
The last 4 are machined the full length two come from a 63 diff that was in a car stored since 1970 in Germany likely totally original.
There is as you said casting numbers in the end of the axles.(pics sent).Slightly different wording to what you said but close.
The axle machining appears to be done by tool approximately 1/2 inch wide run down the axle in a screw type pattern.( pic supplied)
The axle has a taper as they all do.It starts slightly fatter and finish’s slightly fatter than other axles
Herewith
At 4 inches 1.0790
6. 0625
12. 0485
At inner end 0250
There are slight variations axle to axle which could be English machining or NZ measuring.
They certainly are slightly different.
Most of the axle stock came in a container from USA.
So available cars mostly Mk1 Cortina airflow.
He had chassis plates for 11 Lotus Cortina.I bought 4 cars and saw 1 more that he kept.3 GTs which came in the package but I left behind.Two front cuts from MK 2 Cortina that I left behind.A good number of what I believe are type 9 Gearbox’s left behind.
So axles are from Mk1 Cortinas Mk 2 Cortinas and whatever else went to USA maybe Capri.
Hopefully someone on here will know what else was exported to USA.
My main question now I have established my Lotus Cortina axles is what did cars did the other axles come out of.
machining marks.jpgaxle half shaft mark.jpg
 
I must say that the original posting was mainly concerning dimensions, brake offset ECT... where lotus and gt's are the same.
Find attached technical article by Bryan Moorcroft from an old Quater Bumper, my find it of use.
 
Brian c said:
I must say that the original posting was mainly concerning dimensions, brake offset ECT... where lotus and gt's are the same.
Find attached technical article by Bryan Moorcroft from an old Quater Bumper, my find it of use.

Cheers Brian - does say GT is adequate replacemet not same as.
 
More from Facebook post...

Scott Simpson - Hi Bruce, Those look like the real deal. The bottom photo looks very much like what I have on AJT. I couldn't be arsed to go out and remove a hubcap to confirm what was cast into the end, but I figured you'd get the gist of what I meant. If you put a sliding vernier on just the stud flange and measure the thickness, you'll see which are Lotus versions, as they are thicker at that point and noticeably too. The longer axle(half) shafts are probably Mk2 cortina, as their axles are wider than the Mk1's. Lotus halfshafts were a popular upgrade for anyone using a GT/super/Deluxe, etc in competition, fast road guise, so Ford sold plenty over the counter back in the day. Finding a pair shouldn't be too difficult (looks like you've now got several pairs!), but people identifying what they have is the problem. I'm sure that halfshaft lengths are given in the parts book, for all variants but Lotus, so that might help you identify the remainder. I'll dig out my parts books and have a look see.

Bruce Miles - Thanks
Yes you threw me when you said flange thickness
I dutifully measured all flanges but the difference is shaft diameter near the flange and from there and down the whole length of it.They all taper but LC ones are consistently fatter.
I would appreciate if you could sometime let me know what the other ones fit.
Cheers
 
Interesting, according to the parts list/manual, from November 65 Gt's and Lotus models used the same shafts ?
 
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