diff help plz.

Post by **bigmick** » Mon May 28, 2007 9:03 pm

bought siera on weekend and front is welded and i cant steer when im in 4x4. so thougt id get unwelded centre.
both the centres have 4.88 written on them in paint pen like the wreckers do.
but have been told 1L diffs were only 4.11?
if i can get new centre and take my ring and pinion off and put them on unwelded centre do i need to take it to diff shop.???
will a rear centre fit in the front diff
just centre and plenetrie gears.??
any help muchly appreciated need to have new centre in bye weekend turning welded on 36s aint much fun.
thanx
mick

Post by **Gwagensteve** » Mon May 28, 2007 9:19 pm

bigmick wrote:bought siera on weekend and front is welded and i cant steer when im in 4x4. so thougt id get unwelded centre.
both the centres have 4.88 written on them in paint pen like the wreckers do.
but have been told 1L diffs were only 4.11?
if i can get new centre and take my ring and pinion off and put them on unwelded centre do i need to take it to diff shop.???
will a rear centre fit in the front diff
just centre and plenetrie gears.??
any help muchly appreciated need to have new centre in bye weekend turning welded on 36s aint much fun.
thanx
mick

4.88 diffs are LJ50, and fit 1.0 housings.

If I recall, r&p are different, as are the splines and everything else. They are different front to rear in a 1.0 too.

Christover might be able to help more. he has been very, well, intimate with 1.0/lj50 swaps.

Steve.

Post by **Zute** » Mon May 28, 2007 9:32 pm

Just unlock one side for most of your off roading. ie 3wheel drive.

Post by **bigmick** » Mon May 28, 2007 9:44 pm

if i take rear centry fully out strip gears off and put ring gear back onto rear planetries and that will it work./

Post by **Pinball** » Tue May 29, 2007 11:45 am

if you're on nth side of brissy,

chase up the NBS boys, they should be able to identify for you, although they may not understand the desire to remove it..

Spock

Post by **christover1** » Tue May 29, 2007 8:02 pm

I have 4:88 LJ50 diffs in my 1.o litre housings.

Front LJ diff is straight bolt in to front 1 litre.

Rear however needs the sierra 1 litre carrier (right word?), as axles are bigger on sierra rear, wheras LJ is same both ends.

So I used the pinion housing and pinion from LJ and bolted Sierra 1.0 centre to it, with the LJ crown gears bolted to it.

christover

Post by **christover1** » Tue May 29, 2007 8:04 pm

PS. Some lj50 have lj80 diffs which are 4:6.

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diff help plz.

diff help plz.

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