 | Home > Maintenance & Modifications > LS3, Tremec G.box and Puma |
 
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264   
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so for obvious reasons I have absolutely no faith in the adapter shaft not letting go just when you need it the most.
I'd also like to have an LS3 V8 at some point (but probably won't happen, but....) so it lead me to think could this be a 2 phase conversion. Is it possible to put a 6 speed manual tremec between the 2.4 puma and transfer box and then perhaps at a later date swap out the puma for an ls3 without having to swap out the gearbox and would the above do away with the adapter shaft? as they say anything is possible, BUT how practical is the above? |
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27th Oct 2021 4:43pm |
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| Shroppy Member Since: 25 Feb 2016 Location: Shropshire Posts: 848  
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Logically it has to come down to how likely you are to fit an LS3? If its a 50/50 then you could end up with a hefty bill for another (albeit nicer) 6 speed gearbox without much benefit.
If you're concerned about the output shaft then I'd suggest swapping that out for a one piece and getting good use out of the MT82/TDCi whilst you prepare for the LS3/Tremec swap. You could always fit the LS3 to the MT82 then save up for when you inevitably blow the MT82 up.  1985 127 V8 Build Thread
Series 2 109" Series 1 80" |
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27th Oct 2021 9:06pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264
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that would be the more entertaining approach. looking for reliability tho. bottom line though - can it be done. ls3 to mt82? |
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28th Oct 2021 9:49am |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264
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/\ got that wrong.
can any confirm if the mt82 can be 'swapped' out for the tremec 6 spd manual and do away with the adapter shaft? |
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19th Dec 2021 3:06pm |
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| Likeomg Member Since: 29 Jun 2012 Location: Lake District / Newcastle Posts: 2626 
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For a t56 to be converted the bill is £6,670.
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20th Dec 2021 4:13pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264
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Like OMG.
could you expand a little on your comment please. ref the t56 what do you get for your £6,670? |
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20th Dec 2021 8:09pm |
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| Likeomg Member Since: 29 Jun 2012 Location: Lake District / Newcastle Posts: 2626
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Rakeway's conversion cost
 Click image to enlarge |
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20th Dec 2021 8:19pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264
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so t56 to lt230 - not problem. what about t56 to puma ? thank you. |
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20th Dec 2021 8:24pm |
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| Likeomg Member Since: 29 Jun 2012 Location: Lake District / Newcastle Posts: 2626
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Oh got you...
Im not sure, I only looked into LS3, puma going the distance. |
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20th Dec 2021 8:28pm |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264
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in all honesty LS3 is a pipe dream....unless the puma gave up.
in the meantime I have absolutely no confidence in the adapter shaft not giving up at anytime and as such have would not consider planner a journey what I might be a little off piste - which is a little ironic considering what the defender is all about. 
hence the line of thought - can an t56 replace the mt82 / adapter shaft? my line of thought be ls3/t56 replaces - pumpa, mt82 and adapter shaft. plus I'm a step in the right direction should an ls3 ever become a possibility. |
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20th Dec 2021 8:57pm |
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| LJMARSDEN Member Since: 08 Jun 2021 Location: Nottingham Posts: 281 
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No one has ever replaced the MT82 alone with a Tremec. It would be cheaper even if that was to work to just replace the output with an aftermarket unit.
There are companies that will make one off adaptors for stuff like that (you will need an adaptor for the engine as well as the transfer box keep in mind) but the cost will be sky high for a one off setup that probably won’t be very popular. The MT82 is pretty well proven with just the output being replaced and can take a good beating already comparatively. That’s only based on seeing a lot of high torque M57 conversions. Luke Marsden 06 V8 1UZFE Defender 90 Instagram: https://www.instagram.com/defender__v8/ |
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20th Dec 2021 10:31pm |
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| Mother superior Member Since: 05 Aug 2013 Location: Surrey Posts: 494
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Stuff a LOF output shaft in there for 300 notes and give me £6,370 Oh woe, oh woe
My crusty old landrover, It will not go. |
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21st Dec 2021 10:02am |
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| Caterham Member Since: 06 Nov 2008 Location: Birmingham Posts: 6264
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I agree in respect of the '82 being well proven - its just the pesky adapter shaft. I have zero confidence in it. I get it there are options out there to 'improve' on it but at present I'm reluctant to believe the entirely solve the problem. Yes they may only be a few hundred pounds to buy but when you consider the cost of the overall job ie incl labour it suddenly becomes quite a lump of cash. How exactly that compares to going down the route of a T56 (if thats even possible) is difficult to say - sure it'll be more but there will likely be a notable value associated with the sale of removed low mile mt82. most importantly the cost of peace of mind by having a proper solution to the adapter shaft - priceless. |
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21st Dec 2021 11:27pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3616 
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Here’s a thought to ponder. The output shaft failure is often attributed to misalignment between the gearbox and the transfer box. If it is your transfer box that is the problem then fitting a new gear box could have no effect at all on output shaft longevity. It’s probably worth clocking the output side of the gearbox to see whether the issue is there or not.
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22nd Dec 2021 7:06am |
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