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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 338   
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I recently converted my 06 90 to a V8. I have a problem with the rear Prop having to be fully collapsed in order to instal it. This may be down to the fact that the TC & Gearbox has been pushed back. However, the mounts are untouched?
My questions are: With only being moved down the chassis a centre meter or so, has this prop always been an incorrect fit? When can I expect it to go pop? (if this is such a problem) 
And Are the Prop Flanges different between models years, Axles and such? There are some off the shelf props with their lengths listed. I want to get lucky and simply pick and choose one that is a few centre metres shorter. List of a couple Props: Puma 90: LR044296 @ 65cm "4 Cylinder" 90's: FRC7732 @ 63cm Current Prop, 300tdi/ TD5 rear:FRC8393 @ 68.5cm 4.0 V8 Defender 90 My Instagram |
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16th May 2023 6:41am |
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| rallysteve Member Since: 10 Feb 2014 Location: Cumbria Posts: 2229 
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Assuming yours started as a Td5? Have you retained the R380/LT230 in the same location as the original installation?
On my V8 conversion I went from an LT77 to an R380 and used the transfer box/gearbox mounts as per a 300tdi then used those to set the locations of the engine mounts. I then used a pair of TD5 propshafts. All of the flanges are the same across models/variants. Steve 02' 110 TD5 Double Cab Rebuild Thread |
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16th May 2023 8:25am |
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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 338
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Yes, same mount positions for the TC & gearbox. Keep in mind on the later chassis the mounts are slotted for the bolt so there is movenent available. Potentially different on Pre TD5 chassis'.
Now I know that the flanges do not change I'll have a think about using the shorter Puma rear Prop. Reason for the need to move the gearbox & TC back was due to the need to fight for fitment between the accessory system and the PAS box. 4.0 V8 Defender 90 My Instagram |
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16th May 2023 10:24am |
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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 338
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"upto 1986". Was the 200Tdi in production then? 4.0 V8 Defender 90
My Instagram |
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16th May 2023 10:38am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414  
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For sure not. I found "FRC7732 - DEFENDER 90 REAR PROPSHAFT 666FOR 2.25 & 2.5 UP TO CA252578 CHASSIS NUMBER". But I am not aware that there were any changes to chassis or gearbox/TC (except suffixes). 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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16th May 2023 10:56am |
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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 338
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Hmm, well wouldn't it be inconvenient the sellers stating the wrong dimensions... 4.0 V8 Defender 90
My Instagram |
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17th May 2023 6:07am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414
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From /gwynlewis4x4.co.uk :
200tdi: Working length :- 667mm + – 8mm Fits :- Defender 90 Rear 2.5/2.5Td/200Tdi 300tdi/td5: Working length :- 710mm + – 8mm Fits :- Defender 90 Rear 300Tdi/Td5 Puma: Working length :- 645mm + – 8mm Fits :- Defender 90 Rear PUMA TDCI Td4 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing 2012 90 CSW, 2.2TDCI, Santorini Black |
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17th May 2023 7:08am |
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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 338
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I certainly Trust GwynLewis over where I first found the info...
Still looks to me the Puma model year will do.  4.0 V8 Defender 90
My Instagram |
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17th May 2023 7:25am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414
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Just note that by default, Puma 90 rear shaft is out of phase (diff yoke and transfer case side yoke are not aligned, just like the front prop shaft of all years). This was apparently done to reduce 'vibration' since the diff and TC are not parallel on a Puma (nose up engine install). If your TC (and engine) are installed horizontally, then you need the yokes to be aligned, so they work together and get constant speed again. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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17th May 2023 8:17am |
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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 338
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I'm considering a Gwyn Lewis product would they be deliberately out of phase too? I've not yet read through all info their site. 4.0 V8 Defender 90
My Instagram |
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17th May 2023 8:26am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3414
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When I read the description on their website for the Puma rear prop shaft, they say "Phased when required to reduce vibrations.". So seems like they can tailor it for specific needs.
https://gwynlewis4x4.co.uk/product/puma-90...-mega-610/ 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing 2012 90 CSW, 2.2TDCI, Santorini Black |
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17th May 2023 8:39am |
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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 338
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I'll have to measure the distance this weekend and get intouch with them.
Thanks Dinnu 4.0 V8 Defender 90
My Instagram |
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17th May 2023 8:45am |
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