Page 1 of 1
d21 identify my diff
Posted: Wed May 04, 2011 2:28 am
by b00st
my d21 Nissan 89 datsun twin cab petrol 2L (NA20) 4wd's rear diff just shat its self.
im new to 4wd and diffs but from the research i have done its a
c200 ratio 4.8
trans axle code CA48
correct me if im wrong but CA standing for c200 and 48 standing for ratio 4.879?
this is the truck
thanks, Tony
Re: d21 identify my diff
Posted: Wed May 04, 2011 8:26 am
by sibainmud
Hi Tony,
That's the "small" diff with drum brakes for both hand and foot.
My truck had one of those, but i updated to the "HG 48" rear diff.
I sold the orginal one for $50. The main problem with getting a whole diff off a Terrano, is that the ute has leave springs and the Terrano has coils. The inides can be changed over to your housing or consider a coil conversion. I saw a Navara converted while at Pureora last year.
What part of NZ are you in?
This is what the housing looks like, with the cover plate bolting on from the rear. 4.875:1 ratio, (8/39 teeth)
I can have a hunt around up here if you need it.
Cheers,
Simon.
Re: d21 identify my diff
Posted: Wed May 04, 2011 1:39 pm
by b00st
cheers mate. i found one in Alexandra. i live in Cromwell,
$500
that to steep ?
Re: d21 identify my diff
Posted: Wed May 04, 2011 2:24 pm
by charo249
What have you broken? I am in Dunedin and have 2 Nissan C200 diff centres that are surplus to requirements one 4 spider and the other a 2 spider think I have a 4.8 ratio crown wheel as well.
Re: d21 identify my diff
Posted: Wed May 04, 2011 10:25 pm
by charo249
Can open up your diff yourself just drain oil and pull the cover off the back, if you put it on axle stands and rotate the wheels you should be able to determine whether it is the crown wheel and pinion or the spider gears causing the problem (look out for chunks of metal on magnetic drain plug when you pull it out as well).
As long as it isn't the pinion cog (the little one the drives your crown wheel) I can sell you the parts for much less than $500.
The 4 spider diff head is out of a Terrano/Pathfinder and has new bearings on it and I would sell for $200.
The 2 spider diff head is out of the front of an old Nissan Safari/Patrol and I would sell it for $90.
The 4 spider diff would be a stronger however it depends on how much you want to spend, I will also bolt the 4.8 ratio crown wheel to either one of these diff heads for you (may sell crown wheel by itself if that is all you need). Also note that neither of these have an LSD, but then most Terrano diffs don't either and even the Navara LSD's can be hard to track down.
Re: d21 identify my diff
Posted: Thu May 05, 2011 12:46 am
by b00st
got a c200 ca48d diff 4.8 LSD, n improvement
happy with the money i spent. fist diff swap i have done happy with outcome
thanks for help and input.
we should sus a nevis day in cromwell
Re: d21 identify my diff
Posted: Thu May 05, 2011 12:48 am
by b00st
charo249 wrote:Can open up your diff yourself just drain oil and pull the cover off the back, if you put it on axle stands and rotate the wheels you should be able to determine whether it is the crown wheel and pinion or the spider gears causing the problem (look out for chunks of metal on magnetic drain plug when you pull it out as well).
As long as it isn't the pinion cog (the little one the drives your crown wheel) I can sell you the parts for much less than $500.
The 4 spider diff head is out of a Terrano/Pathfinder and has new bearings on it and I would sell for $200.
The 2 spider diff head is out of the front of an old Nissan Safari/Patrol and I would sell it for $90.
it was the pinion
it was the pinion
The 4 spider diff would be a stronger however it depends on how much you want to spend, I will also bolt the 4.8 ratio crown wheel to either one of these diff heads for you (may sell crown wheel by itself if that is all you need). Also note that neither of these have an LSD, but then most Terrano diffs don't either and even the Navara LSD's can be hard to track down.
Re: d21 identify my diff
Posted: Thu May 05, 2011 11:56 pm
by charo249
Guess it is to late by now, but usually pays to check the thrust washers in the sides of diff before installing back in the housing. I have pulled two Nissan LSD's to bits and both had stuffed thrust washers - diff will not limit slip as well without them.
Was just talking with a mate the other day about going up the Nevis for a hunting weekend - good country and right on your door step.
