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Drover

Member Since: 27 May 2011
Location: Central Coast NSW
Posts: 53

PUMA Gear box MT82 problems

Well after 75,000K's the box in my SVX has spat 6th gear. It appears to be a chipped tooth, none of the other 5 gears are affected.

Ive dropped the oil for a look and didnt find any metal filings on the magnetec drain plug or any silver in the oil. Actually the oil was clean and in good order, it was only changed 10,000k's ago.

So the questions are -

1/ Do I rebuild the PUMA box and if so Ive heard that there are difficulties in doing this ?

2/ Will the Ford Ranger 3.2L MT85 bolt in ? What if any modifaction would need to be done ?

Thanks in advnance

23rd Dec 2014 2:32am

martinfiattech

Member Since: 13 Nov 2013
Location: leicester
Posts: 422

I`ve rebuilt a couple of mt 82`s in transits. It`s not the nicest box to work on.
you will need a good set of pullers, bearing race heater, hot air gun ect.

The ones iv`e worked on have been a bit tight to get the shafts in and out of the casting.

As for the 3.2 I believe it`s a five cylinder unit, I think the mt 85 is a BIGGER box due to the increased torque of said power unit, weather it will mate to the transfer box without adjustment is another matter. Excuse the spelling I`am better with spanners and wires.

23rd Dec 2014 9:15pm

Drover

Member Since: 27 May 2011
Location: Central Coast NSW
Posts: 53

Hi Martin,
Thanks for your reply.
Do you or any others know if the bell housing bolts/clutch ect of the 3.2 match the the 2.4 ?
Additionally, was the out put shaft of the PUMA MT82 changed to suit LR transfer case or the TC changed to suit the MT82 ?
Thanks in advance for any info.

19th Jan 2015 7:28am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17372

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

I believe that the bellhousing is the same, but there are others here who'll know for sure.

There is an (infamous) adaptor shaft fixed to the standard Ford output shaft, and a bespoke extension housing which physically attaches the standard Ford box to a standard LR transfer box.

19th Jan 2015 11:07am

Drover

Member Since: 27 May 2011
Location: Central Coast NSW
Posts: 53

So if I have my original PUMA box as a doner, will I need this adaptor or between the two boxes will I be right ?

19th Jan 2015 8:27pm

big steve

Member Since: 24 Dec 2009
Location: hertfordshire
Posts: 2456

2015 Defender 90 Puma 2.2 HT Montalcino Red

The bolt pattern does match yes but the only difference is 2 bigger bearings I spat the 3.2 gearbox out behind my 3.2
And now have defender gears in it and tbh I think there stronger ?

3.2 gearboxes are like hens teeth I stick another std 2.4 box back in in my opinion

Steve 2015 2.2 tdci hardtop xs
3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P
hybrid turbo in build -done ready to fit
ashcroft atb in transfer box
6 speed auto in build

19th Jan 2015 8:47pm

Drover

Member Since: 27 May 2011
Location: Central Coast NSW
Posts: 53

Hey Steve,
Here in Aus the 3.2 box (Ford Ranger) are readily available.
What was required to match up the transfer case. Being that I have the busted PUMA box as a parts donner, will I have all the available bits I need ?
Will the prop shafts length need to be modified ?
Appreciate you advice.

20th Jan 2015 9:14am

big steve

Member Since: 24 Dec 2009
Location: hertfordshire
Posts: 2456

You will have all the bits all you need to do is swap the back end over with a few other mods
But as I said I have ripped 3 gears apart in the 3.2 box and replaced with them with te defender parts and it's had been fine since and that's got 240hp running through it ? 2015 2.2 tdci hardtop xs
3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P
hybrid turbo in build -done ready to fit
ashcroft atb in transfer box
6 speed auto in build

20th Jan 2015 11:00am

Drover

Member Since: 27 May 2011
Location: Central Coast NSW
Posts: 53

Thanks Steve,
Realy unsure what to do.
I've blown 6th after just 75,000k's.
A replacement PUMA box just seem like more if the same.

20th Jan 2015 11:31am

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