4.88 gears where????????

[bigmick]

hey all
have put up wanted adds and have been looking high and low.
does any one know where i can get a set of 4.88 gears for my siera.
need them badly and ive had no luck.
just need 1 set ring and pinion.
any help much appreciated.
thanx
mick

[nicbeer]

1L diffs i believe dont u have?

also LJ80 and 50s are the same i think.

[bigmick]

yeah have 1L diffs but apparently they didnt have 4.88 gears. so im lost.

[Highway-Star]

Don't ask me what fits what, but I about 95% sure that 1L Sierras are 4.1 diffs, LJ80/LJ81 are 4.5 and LJ50(2 strokes) are 4.8 . If you really need those 4.8's theres a LJ50 hardtop for sale on Ebay I think, though parting it out would be sad .

[MART]

Do you have any photo's off the diffs and diff centre , does it look like centre on diff housing has been changed and what size axle's do you have , Cheers Paul.

[bigmick]

i know for fact that they are 4.88 cause front and rear have got 4.88 written on them in paint pen like the wreckers do i compared them to a standard 1L gears and are a little different.
this is all that is left.

[offroader-rama]

count the teeth on the crown wheel and devided it buy the number of teeth on the pinion wheel this will give you your ratio maybe whats in texta is wrong
and i'll have a look as soon as i can. i have some assorted 1ltr diffs and lj80 diffs centers. i may have something remind me friday, if i haven't posted any thing as i may forget.

rama

[Gwagensteve]

We have had a few 1.0 cars set up with 4.88 gears here in vic. Yes, they are lj50 gears.

Yes, they are gettng hard to find, and do break.

Front and rear R&P are different, I don't know If they are interchangable.

I haven't seen your third members Mick, but I believe the best way to go (for one end, if not both) is swap a complete lj 3rd member as these have a thrust bolck which helps the ring gear live. 1.0's do not have the thrust block. (it is a bolt visible on the side of the 3ed member roughly in line with the pinion.

Christover may be able to give more advice about what swaps with what, he has run 4.88's for ages and has tried most combinations.

Steve.

[offroader-rama]

steve whats a third member in a diff center?????????

[Gwagensteve]

If your having a dig, Sorry, I re-read my thought I was making sense.

If it's an innocent question, the third member is the drop out centre section - the cast part that unbolts from the housing which contains the centre, pinion and bearings. (this is not removable from a Dana style diff)

I believe that LJ50 diff gears will go into a 1.0 3rd member, but that front and rear lj50 gears are different (and I am not sure which end of the lj50 gears go into end of the 1.0)

The cars I have seen and played with running 4.88's all seem to have an LJ50 third member on one end and a 1.0 on the other, and I am unsure why.

I believe the LJ50 third member is superior to the 1.0 third member as it has the thrust block.


Christover will be ale to assist further.

[offroader-rama]

it was a innocent question i have allways just called it a carrier,either in houseing carrier as in dana, salsbury,borg warner etc or removable carrier ie suzuki, highlux,gq patrol etc
so now i can call it a 3rd member as well
thanks steve

[waxhead..]

Mick just do the Diff swap. Max offset 36' swampers and LJ50 diffs do not mesh well.

[Highway-Star]

I may be able to add to this further?

I believe that only front diffs on 1L's are interchangable with LJ diffs. i.e. if you wanted 4.1 diffs in you LJ50, you would need 2 front 1L diffs. I think this is WRT the 'third member' Steve's mentioned (I always called it a carrier too). This may be due to axle splines, and this can be rectified by new side gears.

I'm not as sure on this as I was before though, maybe 75% sure?

[Gwagensteve]

I think the yanks are the ones that call them a third member. (Or, more correctly, a dropout third member)

I have no idea why

You are right though, whether removable or not, that part of the diff is the "carrier"

Steve.

[bigmick]

We have had a few 1.0 cars set up with 4.88 gears here in vic. Yes, they are lj50 gears.

Yes, they are gettng hard to find, and do break.

Front and rear R&P are different, I don't know If they are interchangable.

I haven't seen your third members Mick, but I believe the best way to go (for one end, if not both) is swap a complete lj 3rd member as these have a thrust bolck which helps the ring gear live. 1.0's do not have the thrust block. (it is a bolt visible on the side of the 3ed member roughly in line with the pinion.

Christover may be able to give more advice about what swaps with what, he has run 4.88's for ages and has tried most combinations.

Steve.

my 3rd has got the thrust block thing.
will count wat is left of gears.ring gear has got 39 teeth.not shore on pinion it is in shed atm.
does any one have a full lj centre.

[offroader-rama]

i have 2 1ltr front center/carrier and a rear and a box of diff bits from lj's might be gears in there it was long time ago i had my lj so i cant remember

[offroader-rama]

if i get a chance i'll check after i sort the kids out after tea

[bigmick]

i have 2 1ltr front center/carrier and a rear and a box of diff bits from lj's might be gears in there it was long time ago i had my lj so i cant remember

thanx heaps. would i be better off going back to stock 1L centres. or is there any where i can bye after market gears.
im killing to get this thing wheeling again.

[offroader-rama]

you may get them but i doubt it, there old small and unwanted.
changing to regular 4.1 would mean you can get them any day for $100
i didnt get a chance to see what i had its to late now i'm off to bed but i will be home by lunch tomorrow so i'll look then what i still have i 'll sell you what i have cheap if you want as i want to clean up

[bigmick]

any luck.
thanx
mick.

[offroader-rama]

mate i had a look all i could find was a heap of hemispheres lj small and large axle and 1ltr's and 1x 1ltr front center 4.11 axles and brakes etc but no housing and 1 rear diff complete i asume 4.11 come out of a 1ltr tray back??
i thought there was more must have sold them ??
but your welcome to what i have come and have a look if you want might get you back on wheeling any way i dont want much for them!?

[Gwagensteve]

All 1.0 litres are 4.1.

In relation to housings, traybacks have the brakeline bracket on the LHS of the housing, stylesides (both LWB and SWB) and HT's have the brake line bracket on the RHS of the housing. No other differences from a driveline point of view.

Steve.

[offroader-rama]

thats what i thought!
so there is a pair of 4.1's there if you want them

[bigmick]

hey mate would be interested in the 4.11 for a spare set. just in case how much you after. pm me if you want.

[offroader-rama]

give me $150 and you can have all the early 1ltr lj80 stuff i have, if i seperate it, whats left will go in the wheely bin and that would be a shame.

what engine, gear box, transfer,tyre combo are you running must rev had on road with 4.88 centres

[bigmick]

1.6 gemmi engine 4speed box. twin tcases. welded front and rear. on 36 swampers. its a trailer queen.

[offroader-rama]

oh the yellow beast the one you were trying to sell a while back.
did you want the diffs??

[bigmick]

nah i bought the yellow one that is now black. just trying to sort out a few bugs. will let ya know if i need them i may have tracked down a 4.88 third front and rear.

[offroader-rama]

with wheels/tyres like that i'm surprised it still runs suzuki diffs it must smash them all the time. i have a spare set of hilux diffs with 5.29's if they brake again