Propshaft fitting

Clutch, Gearbox, Overdrive, Propshaft, Differential, Drive Shafts, Hubs.
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mikeo632
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Propshaft fitting

#1 Post by mikeo632 » Wed Oct 13, 2021 1:26 pm

Come to swap my propshaft with a spare one from a donor car, but 1 is fitted with the sliding joint at the gearbox end, the other with it at the diff end?
Which is correct?

Thanks.
Mike.

torque2me
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Re: Propshaft fitting

#2 Post by torque2me » Wed Oct 13, 2021 7:59 pm

mikeo632 wrote:
Wed Oct 13, 2021 1:26 pm
Come to swap my propshaft with a spare one from a donor car, but 1 is fitted with the sliding joint at the gearbox end, the other with it at the diff end?
Which is correct?

Thanks.
Mike.
If you do a search you'll find a fairly recent thread on this subject.

I always put mine back in the same orientation with the help of Tippex.

Kev

Charles H
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Re: Propshaft fitting

#3 Post by Charles H » Thu Oct 14, 2021 8:06 am

Sliding joint at the rear.
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mikeo632
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Re: Propshaft fitting

#4 Post by mikeo632 » Thu Oct 14, 2021 8:09 am

Thanks.

Clifford Pope
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Re: Propshaft fitting

#5 Post by Clifford Pope » Fri Oct 15, 2021 7:50 am

There is frequent debate in the Series LandRover Club about this, and the concensus is that each joint should be at the gearbox end,
a) because they are higher off the ground so get less road dirt splash
b) because it's heavier than the plain tube so it reduces unsprung weight

I don't think either argument signifies in the case of the Triumph - the shaft is quite low at both ends, and the IRS means none of its weight is unsprung.
A conclusive argument I found was that the shaft is thinner at the sliding joint so easier to keep clear of the handbrake cable horseshoe if mounted at the axle end. (another argument for an exhaust without the middle silencers)

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Re: Propshaft fitting

#6 Post by johnnydog » Fri Oct 15, 2021 9:29 am

But then again, an auto has the sliding joint at the gearbox end.....
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Re: Propshaft fitting

#7 Post by harvey » Fri Oct 15, 2021 2:05 pm

FWIW. If you were to have the short yoke attached to the gearbox, and then drive it (without the prop fitted), it would fly outwards, and hit whatever with the force at the end of about 6". If you did the same with the propshaft, it would hit with the force at the end of about 4 foot (the length of the prop). That is trying to happen when the two halves of the prop are joined together, it's just the splined slider stopping it, and so that will wear the splines, and more so if the sliding joint is at the rear. Discuss.
Currently over 35 years worth of fixing 35 boxes.
Hoping to reach 65 years worth of fixing 65 boxes.

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