Thanks all! It's an H150 4.1.

Does this diff look overly worn?

The ring gear is strangely worn on the outside, and the drive side teeth look like they have shallow wear. Bit hard to tell from a photo, but what do you think?

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Interesting. I get the general idea of caster, but at first glance I can't quite get my head around the geometry of how a wedge could affect caster, but it kind of makes sense as the axle is travelling in an arc due to the shackles. Anyone running wedges like these?

I see caster wedges for rear leaf springs advertised sometimes, usually for 4x4s, but I see kits advised for RWD Datsuns too. Can anyone explain rear wheel caster to me?

Nice looking PB210. Lots of photos.

https://page.auctions.yahoo.co.jp/jp/auction/b404083691

I like e-go couriers.

https://www.e-go.com.au/

The cross-members turn up on yahoo auctions. There's at least one now:

https://page.auctions.yahoo.co.jp/jp/auction/j576535906

Nice looking for a Holden.

1970 Holden Torana GTR-X Concept

Is it possible to measure cam specs with the cam installed? I'd like to get the specs if possible. All I know is that it has ".265 cam lift (mild grind)". It's a street engine and seems to drive like a relatively standard engine.

I couldn't find any specific info on the primary resistance of the Standard Motor UF4, but it seems to be a replacement for the NGK 48776 (U1099) which is listed as having 0.93 ohms primary resistance.

There's also NGK 48862 at 0.67 ohms and NGK 48792 at 0.75 ohms.