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crown wheel & pinion probs

Posted: Wed May 04, 2005 8:51 pm
by HUNTERLUX
I GOT A 4:8 DIFF CENTER & the crown wheel & pinion dont fit
into my limo housin they have a big gap between the crown wheel & pinion
when u look at it the crown wheel is to far to the left
the housin they came with fit my lux & mesh ok but now that they dont fit my limo my mate wanted to fit it to an air lokka any idea what model they r out of so we can order the right lokka
i was told when i bought them they were out of a 4 runner 84 but now im doubtin this any help appretiated

Posted: Wed May 04, 2005 8:57 pm
by Slunnie
I assume you adjusted the crownwheel in to mesh properly with the pinion by adjusting the bearing screw cap things?

Posted: Wed May 04, 2005 9:01 pm
by HUNTERLUX
yes but there is 10- 20 mm gap if i remember right & that is a bit to much to adjust the teth r on the out side of the crown wheel

Posted: Wed May 04, 2005 9:51 pm
by POS
Does the crown wheel actually go into the centre section. What i meen is that if its 20mm out then does it still go threw the grove cut in the casting??

I am certain that all centres from 79 or 80 are pretty well the same. LSD or open doesn't really matter.

Do the gears that came off the LSD fit into the other centre???

Re: crown wheel & pinion probs

Posted: Wed May 04, 2005 11:05 pm
by Gribble
HUNTERLUX wrote:I GOT A 4:8 DIFF CENTER & the crown wheel & pinion dont fit
into my limo housin they have a big gap between the crown wheel & pinion
when u look at it the crown wheel is to far to the left
the housin they came with fit my lux & mesh ok but now that they dont fit my limo my mate wanted to fit it to an air lokka any idea what model they r out of so we can order the right lokka
i was told when i bought them they were out of a 4 runner 84 but now im doubtin this any help appretiated


Is it a 4.8 housing? They are different from 4.3's.

Posted: Wed May 04, 2005 11:25 pm
by POS
Hang on, maybe you have a high pinion and a low pinion centre???????

As far as 4.88 and 4.3's go, i am sure i have used the same carier for both, but it has been a while since i have done anything with hilux gear!

Posted: Thu May 05, 2005 7:57 am
by Gribble
POS wrote:Hang on, maybe you have a high pinion and a low pinion centre???????

As far as 4.88 and 4.3's go, i am sure i have used the same carier for both, but it has been a while since i have done anything with hilux gear!


The way my local diff rebuilder said it works is all the carriers are identical. BUT, because 4.8's and 5.2's require a smaller drive wheel to get the desired ratio (simple physics) it needs to be closer to the crown wheel. So the 4.8 housings have the pinion shaft offset closer to the crown.

You either need the 4.8 housing or a spacer. Id find a housing.

Posted: Thu May 05, 2005 2:33 pm
by PSI3y
i found that ther earlier generation 4.8's have a thinner crown wheel when compared to the later 4.8's. so if you are using the older crown in a newer housing thisa may have a problem. i had them laying side by side so i definately know there is a difference

Re: crown wheel & pinion probs

Posted: Fri May 06, 2005 9:18 am
by BOGAN V8
HUNTERLUX wrote:I GOT A 4:8 DIFF CENTER & the crown wheel & pinion dont fit
into my limo housin they have a big gap between the crown wheel & pinion
when u look at it the crown wheel is to far to the left
the housin they came with fit my lux & mesh ok but now that they dont fit my limo my mate wanted to fit it to an air lokka any idea what model they r out of so we can order the right lokka
i was told when i bought them they were out of a 4 runner 84 but now im doubtin this any help appretiated


The lokka part number your after is a RD23 will fit all hilux front and rear and 80s front (which is high pinion)

Posted: Fri May 06, 2005 4:15 pm
by HUNTERLUX
PSI3y wrote:i found that ther earlier generation 4.8's have a thinner crown wheel when compared to the later 4.8's. so if you are using the older crown in a newer housing thisa may have a problem. i had them laying side by side so i definately know there is a difference


this is the case so how would i go fittin this to a air lokka

Posted: Fri May 06, 2005 4:17 pm
by BOGAN V8
the air lokka will fit all hilux centre any ratio any year model centre

Posted: Fri May 06, 2005 4:28 pm
by HUNTERLUX
BOGAN wrote:the air lokka will fit all hilux centre any ratio any year model centre

but if a late model carrier wont fit the early 1 how will the rd 23 fit as it is the same as the late model carreir

Posted: Fri May 06, 2005 4:29 pm
by BOGAN V8
thats the listing on in the ARB book will fit all hilux