|
|
Post by caffa on Oct 5, 2005 23:09:00 GMT 11
Have seen the G80 on the plate on the firewall but cant find anything on the diff. Can somebody please tell me if the G80 on the diff is obvious and where about I should be looking for it, if in fact it is there. Cant seem to find it anywhere. Ta in advance.
|
|
|
|
Post by Graham on Oct 5, 2005 23:59:11 GMT 11
I didn't think the diff was marked at all, just the plate on firewall. The only way people have confirmed before is to jack up the back end and see if the wheels go in the same direction when rotated (or something like that). Lucky bugger if you've got it  |
|
|
|
Post by geeves on Oct 6, 2005 11:09:41 GMT 11
Diff should have a tag on the filler but it might of fallen off
|
|
|
|
Post by spectral on Nov 4, 2005 20:42:12 GMT 11
I'm the opposite.
I have an LSD (verified by jacking the rear up and the wheels cannot be turned in opposite directions), but no G80 on the plate.
Its a 1991 model.
|
|
|
|
Post by dani4JB1T on Nov 5, 2005 4:55:02 GMT 11
I have an LSD (verified by jacking the rear up and the wheels cannot be turned in opposite directions), but no G80 on the plate. Its a 1991 model. I had the same in my Mu...it was a 1991 too w/LSD but no G80 code. |
|
|
|
Post by caffa on Nov 6, 2005 0:03:05 GMT 11
I'm no einstein in the differential department. Would there be any impact on the LSD if it had normal 90w hypoid oil in it for years instead of lsd oil ?
|
|
|
|
Post by geeves on Nov 6, 2005 8:35:08 GMT 11
wont do the clutches much good You might get away with putting lsd oil in but you might of turned it into a normal diff
|
|
|
|
Post by caffa on Nov 6, 2005 9:23:48 GMT 11
hmmm thats what i was afraid of. I have run a few lots of lsd oil through it in the hope of just that and it didnt come good, I guess thats a pretty good indication.
|
|
|
|
Post by mulover on Nov 6, 2005 14:58:49 GMT 11
Either that or you never had one. if you plant the foot when turning sharp on a wet day and the back end steps out then usually you got a lsd. easyist thing for you would be to either pick up an lsd diff off a wrecker or put a locker in it.
|
|
|
|
Post by Graham on Nov 6, 2005 23:29:35 GMT 11
Mulover, I don't think the side stepping in the wet is a good indication of an LSD - my MU does that all the time! In the dry around a round about maybe, in that case mine just spins the inside wheel, but one rear tyre with traction isn't enough to keep my MU in a straight line. I do have a 3.1 if that might be the cause of the difference. Graham. |
|
|
|
Post by James W on Nov 7, 2005 7:20:03 GMT 11
Of course the side stepping in the wet will vary with what tyres you have got.
I changed to LSD about a year ago and noticed a drumming or chattering on a tight turns under power, like for a quick u turn. However over time this has reduced. The packs have worn or the oil needs changing? or both.... But thats the main thing I noticed about the LSD on road.
|
|
|
|
Post by mudgrip4 on Nov 7, 2005 15:49:30 GMT 11
Caffa - simplest fairly reliable test for lsd is to jack up rear end and spin one wheel forward. If the opposite wheel goes in reverse direction you've got an open diff. If it spins forward also you've most likely got an lsd. When you've done that and confirmed you've got an lsd but want it to operate alot better, go to a diff shop if you can find one or try some auto outlets and get some Redline Heavy Duty Shockproof Gear oil.
This is a specialist lsd product and can make your diff sound like a bucket of bolts but it makes them bite like crazy - close to value of a lokka. If the Heavy Duty Shockproof makes your diff too rumbly during turning, try one grade down - the Redline 80-140 lsd oil. This one worked brilliantly for mine - a great deal more efficient than usual off the shelf brands. Redline are synthetic products ex America, about $25 per litre, and regarded by local diff specialists as best you can buy for lsd - used in motor racing etc. If your lsd is a bit tired, this stuff esp the heavy duty shockproof should really make it work. Remember if you change to Redline, it might take a few hundred ks for the old oil lining to wear off parts and the new oil to kick in.
Mike.
|
|
|
|
Post by mulover on Nov 7, 2005 18:45:49 GMT 11
Hey graham, i don't know either, people have told me its because of the lsd that i can get both wheels spinning going around a sharp turn, maybe its just cause i have soo much low down toqure from the big exhaust, but it sure scares the crap out of the missus!!!
|
|
|
|
Post by Harry on Nov 7, 2005 19:22:35 GMT 11
Don't let her drive then!
|
|
|
|
Post by caffa on Nov 13, 2005 6:27:21 GMT 11
Hey Mike, much appreciated, thanks for that.
|
|
|
|
Post by Roger on Nov 14, 2005 12:34:41 GMT 11
Of course the side stepping in the wet will vary with what tyres you have got. I changed to LSD about a year ago and noticed a drumming or chattering on a tight turns under power, like for a quick u turn. However over time this has reduced. The packs have worn or the oil needs changing? or both.... But thats the main thing I noticed about the LSD on road. I've always had lsd and the same thing has happenned to me. I even get single wheelspin now with a wheel on the grass and the other on the road  |
|
|
|
Post by adrian on Feb 5, 2006 1:27:34 GMT 11
I have LSD in rear axle, (verified the easy way of one wheel on tarmac, other on mud, and see how it drives off) but no G80 on the bulkhead/firewall plate.
havent noticed it in normal road driving, even doing tight U turns, other than when giving it
large throttle inputs on tight slippy junctions, then one wheel will spin, and the other will
spin not long after. (or the spinning one will stop)
(but it step out no more than rear drive sports car i had without an lsd in the rear)
i have a Japanese spec Bighorn 1995 model
am thinking about upgrading the front axle to either lsd or locker,
(and eventually the rear axle to detroit locker)
|
|
|
|
Post by geeves on Feb 5, 2006 7:51:34 GMT 11
Big word of warning on the detroit locker. In USA where they come from a large portion of the Isuzus are localy made and use Dana35 or Dana44 diffs These difs are in just about all USA 4wds and are the ones Detroit make lockers for. As far as Im aware the only lockers available for the Isuzu are the ARB which is an air operated mannual locker for front and rear or the Locka brand of auto locka for the front only. The Locka is an improved copy of the Detriot. Only other way is to weld the spider gears which seems to be common for rock climbing in USA but I wouldnt consider it an option. In slippery contitions you will have no steering and if this is a road car your MOT man will laugh at you at the next inspection instead of issueing a pass.
|
|
|
|
Post by Yarno on Feb 5, 2006 9:26:39 GMT 11
I have LSD in rear axle, (verified the easy way of one wheel on tarmac, other on mud, and see how it drives off) but no G80 on the bulkhead/firewall plate. I have a Japanese spec Bighorn 1995 model Ok I think with the G80 code it will only apply to the 94 (3.1) on models, on my 2.8 (93'-94' model) it has a G60 code which I think would be the LSD. This diff is different to the 3.1 diff in that the disc brakes are different but same centre, which would mean different code. In your case the bighorn diff is different again as it has coil setup so I would expect a different code again. I hope that makes sence... |
|
|
|
Post by mudgrip4 on Feb 5, 2006 11:52:07 GMT 11
Just a thought Yarno - at the Isuzu gathering in Chch last week, I was checking for possible lsd in several vehicles by the old test of jacking up rear end and spinning one wheel clockwise and watching if opposite wheel turned in same direction, suggesting lsd, or spun in opposite direction which generally means open diff. Only one of the vehicles showed it had an lsd and when I checked the firewalls this was the only truck with a G80 code - and this was on a 91 2.8 Bighorn lwb - so G80 works pre 1994. You may be right however - there might be code variations for different lsd setups - just to confuse us.
Quick question - has anyone priced the front lokka from 4wd Systems in Adelaide lately, and is there any club or bulk deal possible?
Mike
|
|
