Have a pair of diff centres for sale, 4.625 ratio.
One crown wheel and pinion set is genuine Nissan, the other is aftermarket GJ Gears, but can’t recall which is which (front or rear). The GJ ones appear to be a bit softer, as it has more wear.
Now here’s the kicker….I bought them 2nd hand, only to find that the rear pinion has a chip out of one tooth, about the size of your thumb nail.
I haven’t given a sale price because I’m open to negotiations. Also, I would prefer it if you viewed them before purchasing, so you know what you’re getting into.
Alternatively, if you’ve got a rear crown wheel and pinion set in 4.625 for sale that I can make a matched set from, I would be very interested. The 4.625 ratio came out of the RD28-T vehicle, aka Spirit.
May also be interested in 4.375 ratios from RB30 powered Patrol, or TD42 powered leaf sprung ute.