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TR7 4 Speed Propshaft

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johnnyj
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TR7 4 Speed Propshaft

Postby johnnyj » 30 Dec 2018 18:48

Hi folks

The gator on my 4-speed '77 prop is split. Does anyone know if this is an easy repair? I have been quoted £165 for a new prop so it would be great if I can have my existing one renewed (I imagine it would also be worth changing the UJs at the same time).

Anyone have any experience of this predicament?

Cheers

John
Triumph TR7 FHC, 1977

saabfast
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TR7 : 4 Speed Propshaft

Postby saabfast » 30 Dec 2018 21:46

I thought the 4 speed prop shaft had UJ's (and only the 5 speed had CV joints)? If it has CV joints I have heard that Mini CV boots fit but I am not sure how they are fitted. I have a spare prop shaft which needs new gaiters and some Mini boots but have never got around to trying to fit them.

If it has gaiters it is probably better to replace the prop shaft with one with UJ's (available from several specialists) as they last better and can be fitted with nipples for lubrication, and rebuilt if necessary.
Alan
Saab 9-5 2.3t Vector Auto Estate Stage 1
Saab 9-3 2.0 SE Turbo Convertible
'81 TR7 DHC
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Beans
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Re: TR7 4 Speed Propshaft

Postby Beans » 31 Dec 2018 19:50

4 speed prop has one UJ and one CV joint. To replace the gaiter of the CV joint you have to dismantle the joint.
And as these are non service joints no repairs are possible (according to the book).

But with a lot of time, care and patience it is possible to remove the shroud that holds the gaiter in place.
A friend has done it before, but as already stated it is a lot of work and it is pretty easy to ruin the joint in the process.
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1976 TR7 FHC (currently being restored ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng)

http://www.tr7beans.blogspot.com/

johnnyj
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Re: TR7 4 Speed Propshaft

Postby johnnyj » 01 Jan 2019 18:01

Thanks Alan and Beans

So, now I know! And I'm on the lookout for a 4 speed prop...

John
Triumph TR7 FHC, 1977

Beans
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Re: TR7 4 Speed Propshaft

Postby Beans » 01 Jan 2019 19:58

Go for one with two UJ's, they can be serviced and refurbished when necessary.
(S&S or Robsport should be able to get you sorted)
Image
1976 TR7 FHC (currently being restored ...)
1980 TR7 DHC (my first car, a.k.a. Kermette)
1981 TR7 FHC (Sprint engined a.k.a. 't Kreng)

http://www.tr7beans.blogspot.com/

johnnyj
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Posts: 151
Joined: 23 Jan 2016 12:12
Location: Northampton
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Re: TR7 4 Speed Propshaft

Postby johnnyj » 02 Jan 2019 19:55

Beans wrote:Go for one with two UJ's, they can be serviced and refurbished when necessary.
(S&S or Robsport should be able to get you sorted)

Great, will do.

John
Triumph TR7 FHC, 1977

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