MXA 5R

**Dougal** · 20th February 2013, 09:34 AM

Originally Posted by steveG

Thanks John.
I love the simplicity and lack of moving parts in this shifter, but was looking at it last night trying to work out if there was a simple way to reverse the fore/aft direction to give:

R 2 4
1 3 5

Came to the conclusion that its not possible with the amount of brain cells I have available!

Steve

The easiest way is to pivot the lever fore/aft above the selector rod with a tail protruding lower which does the push/pull. This does however increase the height of the lever significantly and would require a re-jig of the side/side lever mechanism.

There are many more complicated ways to retain the low height and reverse the fore/aft swing.

Here is my MSA-5G setup. This has the Allegedly Austin Allegro shifter linkage grafted in. It pivots on a ball where that white paper towel is and the tongue of the lever below pushes and rotates the selector rod.
Similar concept to AM's. But his execution is far far nicer.

**Vern** · 20th February 2013, 05:34 PM

Feel free to have a look at mine next time Steve, if your really keen you can pull it out

**Bush65** · 20th February 2013, 06:00 PM

This is a section view through a MXA5

From left to right, on the mainshaft the first selector is 4th (move selector forward), 5th (back), next selector is 3rd (forward), 2nd (back), last selector is 1st (forward), reverse (back).

If anyone is interested in the MXA6, see pic below. Same configuration except 6th is in the rear extension housing.

darryl porter · 17th March 2013, 11:28 AM

i am trying to contact the grub iwas given this contact by bush65 iwould like to buy shifter for my isuzu gearbox thanks darryl 0427 33 44 55.

**Vern** · 17th March 2013, 11:49 AM

Good luck, do you have his mobile number?

**Ancient Mariner** · 2nd April 2013, 09:22 PM

Better late than never couple pics for c.h.i.e.f ,Dougal can`t help with flange
$320 + GST from Isuzu The lt230 will be shifted by 2 seperate levers next to
relocated hand brake . steve G pattern as you you said could see no reason
to complicate it further with me being the only driver

. I have been modding
LT230 so thanks to Bush65 for the post on oil mods The pic is the dog for PTO

Any body have any part Numbers for clutchs for the Isuzu box 28mm x21 spline
Thanks AM

**rick130** · 3rd April 2013, 06:50 AM

I'm in awe of anyone with decent machining skills, I can barely drive a lathe and it's thirteen years since doing some basic setup and machining on a mill

(It is said a little knowledge is dangerous

)

**Bush65** · 3rd April 2013, 08:44 AM

Originally Posted by Ancient Mariner

...

Any body have any part Numbers for clutchs for the Isuzu box 28mm x21 spline
Thanks AM

I think you meant 29mm x 21 spline.

I used an Exedy clutch to suit an Isuzu NPR59, 4/89 on. 300mm od, 29mm x 21 spline.

ISK 6533 for clutch kit - since then Exedy have bought out a HD kit to suit.

ISD 134 for disc (included in kit)

The throwout bearing for mine was a 2226 (some use a different arrangement).

**Ancient Mariner** · 3rd April 2013, 09:58 AM

Thanks for the info I am not sure how they measure clutch hubs but the OD of the spline is
27.75mm or 1.092" in proper measurements give or take a couple of thou.measured by a
bush that is a slide fit over shaft

Regards Noel

**Bush65** · 3rd April 2013, 01:51 PM

I got 29mm x 21 spline when searching for a clutch plate for my MXA box.

The only other size is listed as 25.5mm x 24 spline. so there is no mistaking which one I needed.

BTW, I have a 4BD1T from a truck, and the flywheel is different to what is found in Land Rover 4BD1's. From memory they use a 275mm clutch, where mine is 300mm.

This pic is a copy and paste from the Exedy web site and now lists 3 clutches (standard replacement and 2 button clutches).

Thread: MXA 5R

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