Master
1)
Can anyone advise what the difference is (specifically related to the gearig) between discovery lt230 and that fitted to the lt85 behind the Isuzu/ v8.
2)
My lt85 recently carked it in spectacular fashion whilst attempting to roll start; this being my second gearbox failure in 430K km. I now find myself at a crossroad with the following fitment options behind a 4bd1-t:
A) Reco lt85 solid case/ lt230
Reco lt85 solid case/ lt230 with tapered roller bearings
C) Lt95
D) Isuzu box (various)
E) R380 suffix L
With the major pros/ cons briefly summarised as follows:
A) weak box - apparently
C) very strong box - 4 speed though (major downside) - new clutch - b/ housing (have access to right one) - hi-lo gear lever relocation - vacuum operated d/lock (ok)
D) strong, well matched to engine - modification works - extended downtime - costly
E) mod works required.
As you can appreciate I'm having difficulty in deciding which way I should go. I like having a 5th gear but don't want to outlay big $$$ repeating this job anytime soon.
Any advice?? Experiences?? etc to help my decision process progress is appreciated!!
Cheers JP
TopicToaster
Option C with a TRB 0.996 ratio. You will hardly notice the difference. Also you don't change gear much at all, 4th is good from 40 - 140K. You can use the LT85 5 speed transmission tunnel with a LT95 - minor mod required to locate the transfer lever into LT230 position, same as the Perenties have fitted to them.
Cheers......Brian
1985 110 V8 County
1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)
OldBushie
D. With the right kit it bolts straight in, should take no longer than bolting in an lt85, once you have all the bits that is. Mine bolted together in no time, and was very straight forward to install.
ChatterBox
I'm expecting this day will come for me too. I have an LT85+LT230 and history is unknown to me. Vehicle has done 270k with a turbo for quite a number of them.
Have you looked at prices on the Ashcroft site? I suspect they are what will determine my decision.
From what I've read the Isuzu box is the best, but the most effort as well.
IMO the R380 is nice compared to the LT85 and if prices are OK, I would go an R380 over LT85. But also more effort.
LT85 on strength is apparently similar to an R380. The benefit is, a straight swap for reco box.
LT95 is a good choice if you are happy with 4 speed AND you can find all the parts. I hear all the required parts for a conversion are getting hard to come by.
So my currently thinking is either a reco LT85, or an R380. That's my 2c from reading on the forums.
ChatterBox
^ lol First 3 posts are 3 different answers.
OldBushie
Justin, personally I think it is no more effort to install the Isuzu box if you are to use the grubbs kit. I think I may have spent half an hour playing with the shifter to bring the gates closer together, other than that it is a straight forward gearbox install.
OldBushie
For me, its options D, then C, then who cares
Swaggie
Option D. No question.
However my LT85 is still going strong (touch wood), and on its 3rd LT230!
A Disco 1 LT230 would be 1.222 LT230T or 1.211 LT230Q. Disco 2 1.211 LT230Q.
I find the disco case a good ratio, but with an isuzu box the original 1.003 ratio would probably be better.
ChatterBox
I didn't realise it could be that easy. I need to look into this kit more.Originally Posted by Vern
Justin, personally I think it is no more effort to install the Isuzu box if you are to use the grubbs kit. I think I may have spent half an hour playing with the shifter to bring the gates closer together, other than that it is a straight forward gearbox install.
OldBushie
Well if your ever down this way you can look at mine installed in the car. Fits well.
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