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Land Cruisers and Constant 4WD

Submitted: Friday, Apr 04, 2003 at 16:57

Seanny

Is it a viable prospect to convert a Land Cruiser 80 or 100 series wagon constant 4WD into a part time 4WD by installing free wheeling hubs??

If so, can forum users describe the type of conversion eg parts, how is high and low range selected and if there are any issues to be aware of.

Thanks in advance,

Seanny
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ThreadID: 4220 Replies: 4
Views: 518 FollowUps: 8
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AnswerID: 16885   Submitted: Friday, Apr 04, 2003 at 17:36

joc45 replied:

A couple of years ago, some firm came out with a mod to the transfer case on 80 series, which removed the centre diff, and replaced it with a dog clutch. (Toyota were not impressed)
Can't remember the name. Anyone else help?
Reply 1 of 4
AnswerID: 16890   Submitted: Friday, Apr 04, 2003 at 18:22

crfan replied:

http://www.4wdsystems.com.au/Go to 4wd systems web site they have the kit I think it`s about $500.
Reply 2 of 4
FollowupID: 10492   Submitted: Friday, Apr 04, 2003 at 18:37

Kev. posted:

So do Marks Adaptors.
FollowUp 1 of 1
AnswerID: 16910   Submitted: Saturday, Apr 05, 2003 at 08:51

sloth replied:

apart from fuel savings, why would you want to do this? I would be interested to know.

cheers.
Reply 3 of 4
FollowupID: 10527   Submitted: Saturday, Apr 05, 2003 at 10:43

David N. posted:

Less wear on front end components for one! I can think of a few other reasons too..
FollowUp 1 of 7
FollowupID: 10530   Submitted: Saturday, Apr 05, 2003 at 10:50

sloth posted:

good point.
FollowUp 2 of 7
FollowupID: 10535   Submitted: Saturday, Apr 05, 2003 at 13:47

joc45 posted:

I recall the reason stated (rightly or wrongly) was that the const 4wd 80 series were suffering cv joint and front diff failures, part of the argument being that the front diff was smaller than the back. Can't vouch for the validity of the reasons, haven't heard of many failing myself.
Gerry
FollowUp 3 of 7
FollowupID: 10536   Submitted: Saturday, Apr 05, 2003 at 13:56

Kev. posted:

The front diff is smaller on the 80 series as it is apparently from the Hilux and they are known to pop CVs if over worked !
Also with the twin air locker you cant use the front locker without the rear one engaged ,i was told this is to reduce the chance of the front diff failing.

I think the part time kit is a good idea as most 80s iv driven has a driveline backlash from the constant 4wd, this would be removed !

As ive said before i think full time 4wd is just a "sales gimmic" as most people spend most of there time on road.
FollowUp 4 of 7
FollowupID: 10549   Submitted: Saturday, Apr 05, 2003 at 19:37

sloth posted:

good idea for 100 series too?
FollowUp 5 of 7
FollowupID: 10572   Submitted: Sunday, Apr 06, 2003 at 09:54

Mick posted:

Kev Constant 4wd is of great benefit on the road too you know - remember what the 4wd cars did to the competition at Bathurst years ago - they were so good they had to ban them to give Falcons and Commodores a chance to win!! I constantly hear 2wd wheels slipping under acceleration on wet days while I drive off without slippage.
FollowUp 6 of 7
FollowupID: 10580   Submitted: Sunday, Apr 06, 2003 at 14:05

Kev. posted:

Yeah iv heard this side of the story before and dont understand the link between a 4wd and a race car.
Tell me you would realy notice the difference if your 4wd is full time on road or not !

BTW- I remember the Nissans and they won because they had twin turbos ,but also the 4wd would of helped in that application.

Ok every one may not agree with me but if the conversion does nothing else but fix the "clunk" noise between gear changes then i think its worth it.

Kev.
FollowUp 7 of 7
AnswerID: 16978   Submitted: Sunday, Apr 06, 2003 at 16:47

Seanny replied:

I find that the constant 4WD is unnecessary for me. Having all of that mechanical effort wasted on the road seems a bit odd. Even just having the hubs locked all the time is a bit strange. Always has looked like a Toyota cost cutting measure.

I am not one to push the larger vehicles around on the road and I like to decide when I need the 4WD. I do not mind getting out of the vehicle to lock the hubs.

This is forming part of the decision making process in the replacement of my totalled GU. I loved the GU, however, I am also an admirer of the Toyota - I am not a hard and fast this car or that car type of person.

As well in the process is other minor issues such as spare wheel placement, comfort items, roof rack support, whether my partner the kids like it and so on. So if the fulltime 4WD can be made into a part time 4WD at a reasonable cost, then that will be a tick in the Toyota column.

Reply 4 of 4
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