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110 V8 Conversion Propshafts


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I know prop shafts are a recurrent topic, and I have searched - honest. So I think I know what I'm doing, just looking for a warm fuzzy feeling.

So my 1987 110 has a Salisbury back axle and now has its 3.9 V8, R380 and LT230 (possibly) sitting in the "correct" positions. So attention turns to what prop shafts.

I think the rear one is easy, and it's the FRC8389:

1316547245_RearpropDiag.jpg.fff08701f8b30f9f4b9e64dfd0bdac0c.jpg

 

A quick search at https://www.lrworkshop.com/parts/FRC8389 offers the cheerful comments:

by fandrich. 12th Oct 2020 16:50

Otokar Turkey produced the 300tdi Defender XD 110 with the 'salisbury' axle, unlike the UK 'Wolf' using the strutted 'P38'-Wolf axles and the 'P38'-Wolf 130"s 16S axles.

In the combination R380+'salisbury', the civilian 110"s use the FTC3905 prop.

However, the Otokar Defender XD 110" with R380+'salisbury' received this FRC8389 prop.

This makes FRC8389 / FTC3905 interchangeable and it can be assumed that FRC8389 is a HD variant

 

Thank you fandrich! The page is also currently showing that I can buy a Hardy Spicer unit for less than Britpart/Bearmach. Am I missing something or is that a no brainer?

Just to complicate things though, I measure the mid-point flange to flange length on my truck as 1,115mm, whereas on the above page we have:

by fandrich. 27th Nov 2019 00:50

1075mm compressed length

The angles at the flanges look ok, but 40mm extension seems more than I would have expected? Maybe just get one and offer it up...

 

I believe the correct front prop shaft would be FRC8386:

1765088646_FrontpropDiag.jpg.7a3af8b8559b0cb7c0b4058eecece896.jpg

And whaddayaknow, the Disco parts manual gives the same number for the without catalytic part, but FRC8641 for the with cat. Which is what I've got from my engine donor vehicle. As far as I can figure out, it's about not fouling the cats rather than length though?

 

A return trip to https://www.lrworkshop.com/parts/TVB100610 shows FRC8386 has been superseded by TVB100610, which has notes:

Notes
300Tdi and Td5, not V8
Uses larger 93mm UJs, STC4807
Length: 604mm
by fandrich. 5th Oct 2020 11:26
also V8 accoding to microcat from 1A612405 / 2001

 

I got excited yesterday because I started fitting the front prop shaft from my Disco 1 engine donor vehicle, and forgot to measure the flange to flange length. Duuh. Away from home for a time now, so I'll check that when I get back.

My main finding, and source of anxiety, is the angle that the prop shaft takes up. Fine down at the axle end:

20221012_130610.thumb.jpg.dbf841b21f47da37912a4944d0e14374.jpg

 

I think...

But kind of worrying at the tf box end:

20221012_130445.thumb.jpg.416368e1c7257e9f01351b0d364b363d.jpg

 

That looks awful. And not because I haven't cleaned it. Using the nice square edge of the flange as datum i get this on the shaft:

20221012_132810.thumb.jpg.625a6ea5328d6e1c386c8d7bdbbe06d1.jpg

 

Seems like a bigger angle than I'd like?

That's also about 30mm of its extension from fully compressed that you can see there. Seems like a long way?

 

A bit of a brain dump, but any thoughts welcome. I'll be able to get on line periodically although I won't be able to get back to the vehicle for a couple of weeks...

 

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Without the body etc. on your propshafts will be quite extended so I wouldn’t be worried about that.  

I think you’ve identified the correct shafts. I have a 300Tdi/V8/Td5 rear propshaft in the workshop which I can wave a tape measure over if you like. I had it bolted up fine in my 110 rolling chassis.

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20 hours ago, Retroanaconda said:

I think you’ve identified the correct shafts

Cool - I'll go with that :-}

 

41 minutes ago, FridgeFreezer said:

your front axle looks very tilted forward

Yeah - I've been thinking that myself, but I can't see any way it can be fitted differently. Not jacked up and nothing horribly bent. I've put the Disco 1 front springs on in place of the originals - can't see that would be a problem? 😕

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