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Discussion Starter #1
Hi all,

Long time reader - first time poster.

I am building up a 1984 LWB SD33T patrol wagon. (1984, square headlights)

I noticed a problem with the rear diff LSD.
#ODID#SizePCD
ModelStyleSplineRingRing BoltNotes
H233
(aka H233B v1)
Banjo. 3rd member with 9x12mm bolts.3132.0mm (1.26'')233mm146mm

The LSD had variable and very low breakaway torque, 20 - 60 ft lbs tested multiple time and could not get a consistent reading.

LSD was disassembled and I have found that the spring disc and spring plate on the outer of both clutch packs are broken. Clutch plates are also worn but are intact.

There is a good write up here How To Repack a H233B Limited-Slip Differential (LSD)

I have tried searching the net looking for replacement parts but have had no luck. Does any one know a source for LSD clutch plates for aging Nissans or was there a standard fix back in the day using readily available parts.

I would like to persist with the LSD in the rear if possible as a Lokka is being fitted to the front.

Thanks in advance.
 

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Discussion Starter #2
Hi All,

I thought I would provide an update to close out this thread.

After a lot of searching I could not find a new source for the spring disc or the spring plate at a reasonable (any ) price.

I toyed with the idea of shimming the stack with these 56 x 72mm shim washers. 0.3mm THICK SHIM WASHERS HIGH QUALITY STEEL DIN 988 ALL SIZES UP TO 200mm | eBay
I could not find anyone who would ship to Australia.

In the end I sourced a second hand D22 Navara LSD Centre from a transmission specialist. I stripped the clutch pack from the D22 diff, the friction pates and discs were in great shape and showed little wear, and the spring discs were intact. I installed the clutch pack only in Patrol H233B diff. All other original components in the Patrol H233B diff were reused.

I tested the breakaway torque on the bench and got consistent readings of 200 - 210 ft/lbs. Diff is back in the patrol and is performing as expected.

Cost for the Navara D22 LSD centre was AUD $50. I will keep an eye on the LSD and if it fails again I will pursue the shim washer solution.

I hope this is helpful to some one in the future.
 
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