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In need of torque tube shaft(worn out ok)


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#1 croquest87

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Posted 10 February 2019 - 07:41 AM

I am working on a project of new spline gears for the torque tube shaft and gear that it mates to on rear end. If anyone has extra torque tube shaft let me know.Need extra one for this project. One w worn out splines is ok.
Thank you

Dra

Edited by croquest87, 10 February 2019 - 08:01 AM.






#2 stesir

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Posted 10 February 2019 - 11:29 AM

I may have 1 if it's the correct part, I can take a pic..

#3 croquest87

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Posted 10 February 2019 - 12:01 PM

View Poststesir, on 10 February 2019 - 11:29 AM, said:

I may have 1 if it's the correct part, I can take a pic..
Sounds good. Thank you as long as it's from 86-89 wide body it will work.

Edited by croquest87, 11 February 2019 - 06:35 PM.


#4 DJpowerHaus

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Posted 17 February 2019 - 01:57 PM

How many remanned spline gear things are you you making with your project?  Prototype and then maybe a small batch?  I've got 2 worn ones laying around that put towards a run of them.

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#5 croquest87

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Posted 18 February 2019 - 04:54 AM

Already made some progress and was able to machine the original spline sleeve from front of the shaft to it's original place where it was slipped on and welded at the factory.I recorded the dimensions and in process of ordering 5 pcs of material for each to machine the new shaft coupler and spline pinion gear. These will be made as 2 piece kit as replacing one and not the other makes no sense(both are worn out at the same time)  Once it is all proven l will most likely do a group buy. Will keep you posted when it's all ready to go.
Thank you
Dra

https://imgur.com/a/sVLl0aw

Edited by croquest87, 18 February 2019 - 05:11 AM.


#6 importwarrior

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Posted 19 February 2019 - 06:00 AM

well when these go for sale I am 100% in on the list
Amazing work Sir!

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#7 croquest87

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Posted 19 February 2019 - 04:34 PM

View Postimportwarrior, on 19 February 2019 - 06:00 AM, said:

well when these go for sale I am 100% in on the list
Amazing work Sir!
Thank you  l will keep you posted.

#8 delayed replay

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Posted 19 February 2019 - 05:26 PM

I will probably get 2

#9 croquest87

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Posted 19 February 2019 - 08:15 PM

Here is another thing we can do to make things last longer and function as they should.

Notice l placed the grease fitting so its easy to access from side of the car.Inside hole is drilled at on angle to deliver grease to just the right spot and get tossed around by inertia. Enjoy.

Torque tube grease fitting mod https://imgur.com/a/zB2Pdtq

Edited by croquest87, 19 February 2019 - 08:16 PM.


#10 Ressurect1on

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Posted 09 March 2019 - 09:27 PM

What material are you making the new torque tubes/spline shaft and gear out of?

Edited by Ressurect1on, 09 March 2019 - 09:32 PM.


#11 croquest87

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Posted 10 March 2019 - 04:18 AM

4

Edited by croquest87, 10 March 2019 - 04:37 AM.


#12 croquest87

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Posted 10 March 2019 - 04:37 AM

4140  to 40 Rockwell

#13 Bradrock

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Posted 10 March 2019 - 07:27 PM

View Postcroquest87, on 10 March 2019 - 04:37 AM, said:

4140  to 40 Rockwell

That's good material. After we wear these out ,we can pound them into knives & gun parts!
I'm trying to set aside some dough & watching closely.

Edited by Bradrock, 10 March 2019 - 07:28 PM.

Run's with scizzor's

#14 croquest87

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Posted 11 March 2019 - 05:38 AM

Did some material testing  and 4140 is the closest to the OEM material. We need material hard enough to handle the load but not to hard to where its brittle and cracks like glass. Depending on my work load this week l should be able to mess around and go to next step which is making the gears( minus the splines). Have a few places around me that cut gears and do gear hubing. Adding the grease fitting to your torque tube will be beneficial as most of these things got worn out due to lack of proper grease and high rpm clutch release lol

Edited by croquest87, 11 March 2019 - 05:45 AM.


#15 Turbo Cary

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Posted 11 March 2019 - 07:13 AM

View Postcroquest87, on 11 March 2019 - 05:38 AM, said:

Did some material testing  and 4140 is the closest to the OEM material. We need material hard enough to handle the load but not to hard to where its brittle and cracks like glass. Depending on my work load this week l should be able to mess around and go to next step which is making the gears( minus the splines). Have a few places around me that cut gears and do gear hubing. Adding the grease fitting to your torque tube will be beneficial as most of these things got worn out due to lack of proper grease and high rpm clutch release lol

How about machining the housing and adding a second rear bearing? I wonder if the reason the tubes get worn out is lack of rear support for the shaft. You would think that the pinion bearing would help to support the sprocket/TT spline area but what if the TT shaft itself is slightly angled down and causing excess wear on the splines. Or maybe it was just a difference in metal grade that causes the wear.

#16 croquest87

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Posted 11 March 2019 - 09:16 AM

I think they gave it some breading room where the pinion and cup mate so that splines mate naturally and self centering. There are no forward or back forces on straight splines. Splines have their tolerances to be able to mate/grease as they turn.  TT is thin in the area to machine for a large bearing to sit nicely in there unless new TT or complete re designing the whole system. Yes it can be done but  this would be very expensive to do  as l would like to make sure that  average starquester can afford it and be a simple bolt on deal and replacement available.At this point l will make 5 total and prove them out on my cars. If l like it on my cars they will be available for all of you w group buy.

There are many operations to make it all happen and hoping to keep it all quality and cost effective.

#17 Ressurect1on

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Posted 12 March 2019 - 01:30 AM

Nice, Chromoly, good material. when I was trolling the forum before i was reading about these being bad for a lot of people, and reached out to DSS.. but if you plan to make continuous runs, I may drop that venue.

If I may make a recommendation, if you can make a lot of these, try for a contract to parts stores for aftermarket replacement. Because we need something generally available to keep these cars going.

#18 croquest87

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Posted 12 March 2019 - 06:28 AM

Thank you for the suggestion.

#19 ct.rm250

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Posted 14 March 2019 - 02:19 PM

4140 40 rockwell is not hard enough. Stock torque shaft is 60 Rockwell and it is not 4140

#20 pcristquester

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Posted 14 March 2019 - 03:06 PM

following
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