The Toyota Landcruiser Owners Club

wildsmith · Posted: Sat Oct 31, 2009 0:04 Post subject: spare rear diff anyone?

e bay item 140355874731
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Jon m0zxj

01 UZJ100 lifted (AHC & 40mm BL), ARB locked f&r, cryo'd 4.88's, TJM front bumper, 12k goldfish, sliders, rack, snorkel, 35's, storage, aux power etc.
93 HDJ80 sold
94 HDJ80 RIP

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Landcrusher · Posted: Sat Oct 31, 2009 9:16 Post subject:

Typical. Bit late for me. I have asked what ratio it is. This would also fit an 80 front then I guess?
C
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HDJ 80 but still a 90 owner at heart (yeah right!)

wildsmith · Posted: Sat Oct 31, 2009 10:14 Post subject:

According to the EPC it's 3.9 for a 120. Your 90 is 4.1 isn't it or I'd have pm'd you instead Wink

No good for the front of an 80, gears are cut the wrong way.
_________________
Jon m0zxj

01 UZJ100 lifted (AHC & 40mm BL), ARB locked f&r, cryo'd 4.88's, TJM front bumper, 12k goldfish, sliders, rack, snorkel, 35's, storage, aux power etc.
93 HDJ80 sold
94 HDJ80 RIP

Landcrusher · Posted: Sat Oct 31, 2009 11:33 Post subject:

Ahh. Gotcha.

No I think mine is a 4.3

It would have been nice to be able to swap front and back for something a bit longer if truth be told. The 5th gear is simply not high enough on the motorway for any kind of economy.

C
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HDJ 80 but still a 90 owner at heart (yeah right!)

wildsmith · Posted: Sat Oct 31, 2009 17:38 Post subject:

Even less use to you then LC Laughing

You'd probably be able to get some 4.56's for yours from just differentials.
_________________
Jon m0zxj

01 UZJ100 lifted (AHC & 40mm BL), ARB locked f&r, cryo'd 4.88's, TJM front bumper, 12k goldfish, sliders, rack, snorkel, 35's, storage, aux power etc.
93 HDJ80 sold
94 HDJ80 RIP

Landcrusher · Posted: Sat Oct 31, 2009 18:07 Post subject:

All a bit late for me Jon. Once Customs have finished messing around with my consignment, I might get the rear diff at the same time as the front one coming from Oz!

Sigh

C
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HDJ 80 but still a 90 owner at heart (yeah right!)

Landcrusher · Posted: Sat Oct 31, 2009 19:34 Post subject:

Yep, it's a 3.9.
Must have been an LC3 to have a locker fitted. If it's got the locker on too, that's worth £300 at least

C
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HDJ 80 but still a 90 owner at heart (yeah right!)

garystockton · Posted: Sat Oct 31, 2009 19:36 Post subject:

Umm - OK - I'd need to get all the actuator gubbins and switches etc. too, wouldn't I?

Is it worth it, or is an ARB locker better in the long run?
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I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.
- Terry Pratchett

Landcrusher · Posted: Sat Oct 31, 2009 19:41 Post subject:

Yes, you would need the gubbins. The motor has to be fired and then know when to stop. A simple wired in switch just would not work. You would also need the whole axle too so that you could mount the motor. This is just the diff part. Going with an ARB means that you're not reliant on electrickery at all. But do you need it? Now if you have the money, and you could get it for the right price, it would be worth having the crown and pinion in your shed for sure! Anything less than say £350 would probably be a bargain.

C
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HDJ 80 but still a 90 owner at heart (yeah right!)

garystockton · Posted: Sat Oct 31, 2009 19:54 Post subject:

Will pass on that then. If I do a LC or Rubie, I'll go for an ARB Laughing

Once I get up from being decked by SWMBO, of course Laughing

_________________
I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.
- Terry Pratchett

wildsmith · Posted: Sat Oct 31, 2009 20:37 Post subject:

The actuator attaches to the diff so you shouldn't need the rest of the axle. The wiring is very simple, all the detection of end stops etc is built into the wiring on the actuator so a switch and a couple of relays will work (that's all the diff lock ecu is anyway). At the right price it would be a cheap locker. A well set up ARB should be a bit stronger because it will allow less ring gear deflection but that's about £500 + compressor + carrier install and doesn't get you a spare gear set Laughing

_________________
Jon m0zxj

01 UZJ100 lifted (AHC & 40mm BL), ARB locked f&r, cryo'd 4.88's, TJM front bumper, 12k goldfish, sliders, rack, snorkel, 35's, storage, aux power etc.
93 HDJ80 sold
94 HDJ80 RIP

Landcrusher · Posted: Sat Oct 31, 2009 21:52 Post subject:

Not quite Jon - the 4x4 ECU also ties into the ABS system. You would also need to prevent it from coming in at any other time than you needed it. Plus you'd need to rig up to the locked sensor to make sure that it wasn't locked when you fired the unlock position. But of course the locker fits into the diff housing. Had a brain flip there Jon. And to think how many hours I have spent under there!! Well caught. I'd still go with an air locker though.
But if you do an LC or an IDR, you'd STILL need the ring and pinion. The locker does not replace those parts.
G has a compressor already.
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HDJ 80 but still a 90 owner at heart (yeah right!)

NightStalker · Posted: Sat Oct 31, 2009 23:00 Post subject:

I kinda wonder if Vette might be interested as taking this as a spare on his trip south....

Regards
Rob
Cool

wildsmith · Posted: Sat Oct 31, 2009 23:15 Post subject:

The ABS is usually disabled when the centre diff is locked, doesn't wait for axle lockers to be engaged which is just as well in an ARB install because that doesn't interface to the ABS either Wink

The locked sensor, only engaging with the centre diff locked, etc would be handled by the couple of relays I mentioned. The OEM 'ECU' is just a few logic gates and the wiring to replace it really is very straight forward and somewhere on the www there are even wiring diagrams for doing OEM e-locker installs Very Happy

A little grinding might be needed on the locker side of the casing to let the locking collar through BTW.

If you have the spare cash then ARB's should be better but they're an expensive option.
_________________
Jon m0zxj

01 UZJ100 lifted (AHC & 40mm BL), ARB locked f&r, cryo'd 4.88's, TJM front bumper, 12k goldfish, sliders, rack, snorkel, 35's, storage, aux power etc.
93 HDJ80 sold
94 HDJ80 RIP

Landcrusher · Posted: Sun Nov 01, 2009 10:30 Post subject:

Whatever the case, having a spare diff would be handy. The ABS is linked to the rear locker on a 90/120 series, not the CDL. You could as you point out, get around most of this with switches etc, but I really think that one button and an air locker would be much less complicated. I still like the security of not being able to engage the locker unless the conditions are right. The thought of knocking the switch whilst going round a corner doesn't sound like fun. There are much less places on a 90 / 120 for putting things like switches. The later series were never really designed with heavy customisation to be easy. Can you engage your locker at any time Jon or is there any way that they are restricted? There are other bits linked to the system on the 90 (and maybe the 120) where the locker is linked to the engine management system and the limp home mode. I know because I had a problem with this on my LWB. It used to drop the revs whilst I was blasting down the motorway. Interesting deceleration! On the auto, it knocked off the overdrive too. I have never found the 4x4 ECU. It says it's in the back somewhere.

C
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HDJ 80 but still a 90 owner at heart (yeah right!)