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What Model Gemini Has The Same fine spline axles as the 73 Bathurst xu1

Started by grumpy xu1 , Oct 03 2012 09:27 PM

Gemini Axles

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16 replies to this topic

#1 grumpy xu1

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Posted 03 October 2012 - 09:27 PM

What model Gemini had the same fine spline axles as the 1973 Bathurst xu1 torana.

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#2 yel327

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Posted 03 October 2012 - 09:50 PM

I think any of those with the GMH small salisbury diff. Not sure which those were, probably TE onwards or something like that. Anything past about 1976 with a banjo or small salisbury has the same splines so HX-WB, LX-UC VB-VL etc also.

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#3 UCgazman

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Posted 03 October 2012 - 10:42 PM

they all had the same 3.9 salisbury with that torque tube extension, except the diesel which had 3.5 IIRC

Edited by UCgazman, 03 October 2012 - 10:47 PM.

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#4 UCgazman

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Posted 03 October 2012 - 10:50 PM

Actually looks like TX-TC had a BW 3.89 - http://www.ozgemini....ic.php?p=259227
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#5 dattoman

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Posted 03 October 2012 - 11:56 PM

I would say none... since no Gemini ever had 5 stud wheels

Or am I missing the point of the question ?

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#6 _sunburst73-xu1_

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Posted 04 October 2012 - 05:22 AM

I would say none... since no Gemini ever had 5 stud wheels

Or am I missing the point of the question ?

Could be wrong but from memory I think it has been done with the stud pattern being changed to suit Torana.

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#7 _Ozzie Picker_

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Posted 04 October 2012 - 06:03 AM

Edited by 73BATHXU1HTBATH350, 04 October 2012 - 06:08 AM.

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#8 _Ozzie Picker_

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Posted 04 October 2012 - 06:07 AM

Ring Richard at Craft diffs,he did a set for my LJ GTR many years ago,it was a diesel gemini axle,the bearing area was machined,studs welded and relocated.They are very good to deal with.
http://www.aussieweb...ntials/2103491/

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#9 yel327

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Posted 04 October 2012 - 07:16 AM

I would say none... since no Gemini ever had 5 stud wheels

Or am I missing the point of the question ?

I get you! I read it as which one had the same splines, but he may have been thinking whole same axle!

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#10 warrenm

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Posted 04 October 2012 - 07:30 AM

The Gemini axle can have the stud holes welded, then re drilled to suit the Torana stud pattern, fit a Torana bearing. From memory I think a spacer is required behind the brake backing as the Gem axle is a couple of mm longer from the bearing to the flange, it's been a long time since I removed the banjo diff. The axle's from the station wagon are the better ones.

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#11 Dr Terry

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Posted 05 October 2012 - 07:39 AM

Actually looks like TX-TC had a BW 3.89 - http://www.ozgemini....ic.php?p=259227
learn something new every day.....

Correct.
Only TD, TE, TF & TG Petrol Geminis had the 23-spline GM-H diff centre.

TX & TC got the small B/W, while the Diesel Geminis got an imported Isuzu rear end.

Craft diffs can convert Gemini 23-spline axles to fit an LC/LJ Torana rear end.

Dr Terry

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#12 _Mike73_

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Posted 15 December 2012 - 12:52 AM

What model Gemini had the same fine spline axles as the 1973 Bathurst xu1 torana.

I got hold of a set of 4 cylinder Commodore station wagon axles which are thicker and had them shortened and re splined, I haven't tried them though to find out how strong they are ( I did not get a full length spline it was a bit tapered at the end.

Wheel studs are thicker and the bearing is different but this should not be insumountable.

Mike

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#13 yel327

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Posted 15 December 2012 - 06:56 AM

Unless the splines have been re heat treated they'll twist like liquorice. I had L34 axles made the same way once from HQ axles.

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#14 _Mike73_

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Posted 15 December 2012 - 05:21 PM

Unless the splines have been re heat treated they'll twist like liquorice. I had L34 axles made the same way once from HQ axles.

That is what I was afraid of, but as these are not yet fitted up perhaps I can find someone who could heat treat them, but this process may bend them, perhaps induction hardening may be an option, any Ideas?

The HQ V8 axle splines were originally machined in, before later models had them forged.

Mike

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#15 _Viper_

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Posted 15 December 2012 - 10:52 PM

Hmm I didnt think Gemini wagon axles were any thicker? I actually pulled a couple out of a wagon diff last week so ill compare tomorrow.

Why would you want to fit Gemini axles to anything tho? They were the bane of my early gemini years haha. they are terrible weak even behind mild 1.6L they twist and break if given a hard time, By the time you get them re-worked and redrilled custom billet axles are not that much more expensive are they?

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#16 yel327

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Posted 16 December 2012 - 07:02 AM

That is what I was afraid of, but as these are not yet fitted up perhaps I can find someone who could heat treat them, but this process may bend them, perhaps induction hardening may be an option, any Ideas?

The HQ V8 axle splines were originally machined in, before later models had them forged.

Mike

HQ V8 axles were Salisbury axles ie 28 sline. The ones I used were HQ 6cyl banjo axles I think.

Edited by yel327, 16 December 2012 - 07:02 AM.

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#17 _Mike73_

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Posted 16 December 2012 - 09:28 AM

HQ V8 axles were Salisbury axles ie 28 sline. The ones I used were HQ 6cyl banjo axles I think.

Yes it was the strength and manufacturing process we were referring to, if you want to get technical there are many dufferent axles

I will quote HQ - Z mainly to keep the numbers down.

6cyl HQ - X course spline, ( machined spline )
6cyl HX - Z fine spline, ( forged spline )
WB 6cyl fine spline, ( forged spline and rim locating spiggot)

V8 HQ- J larger fine spline ( machined spline )
HJ - HZ larger fine spline ( forged spline )
HZ disc brake axles ( forged fine spline & different flange location )
HQ - Z 1 tonner axles ( thicker axles )
WB larger fine spline ( forged spline and rim locating spigot )
WB disc brake axles ( forged spline & different flange location )

These are just the ones I know of there could be more!

The XU-1 had several axles besides,

1.
LC - LJ course spline till about 1972.

2.
LC replacements and LJ replacements ( thicker and stepped down rather than tapered )

3.
Mid Aug 73 on fine spline, also used as replacements for the 72 and early 73 XU-1

I may not have the XU-1 exactly right, perhaps someone can add to this list?

The station wagon axles like the 1 tonner are often clasificed as commercial axles and this is why they are thicker.

The 4cyl Commodore station wagon axles are commercial and therefore thicker, ( being stepped down rather than tapered ) and they also are thicker through the bearing and have bigger wheel studs, these of course are Torana stud pattern and are not stud locating but centre wheel locating.

Mike