locked diffs are fun in carparks! i almost got arrested for driving my subaru with a sticky rear diff that tended to chirp in tight turns.

yeah i see what you mean, there would need to be a LSD, so if i had a lsd though it would work, because having a lsd is a desirable thing. but if i'm going to get a phantom grip i might as well get a 200sx rear axle and disk brakes.

there aren't going to be any 280zx struts or 200sx rear axles left for their proper cars ;)

Quote:Theoreticly, if you had a single disc brake at the back of the trans, then it would be part of the sprung mass, but to be effective, you would need a spool because with a regular diff, you could lock up the driveshaft with the brake, then have one wheel in the mud at the side of the road with the other on the good stuff & find one wheel rolling forward, while the one on the slippery stuff is actually rotating backwards.
The net effect is no rear brakes at all. The spool would prevent this, but it increases tyre wear & makes it hard to park in shopping malls.

Yep Zed stuff is 9" [228.6mm] so not a straight swap of the drum - it will have to be a complete backing plate/drum sway = might as well go to discs, well that is what I am planning to do on my B210

i already got more front brakes than i'll ever need.

another dumb question...

you know how some 510's have those disk brakes on the IRS axle itself? what if one had a single brake disk on the driveline right before the diff? wouldn't that actually be as good or better and way lighter.

Better to work with the front brakes & have them right on the money, after all, rear brakes aren't much use when the back wheels are in the air.

i'd expect to have to swap the backing plate and stuff, i wonder if that's the only issue, and maybe relocating the holes.

this is just theoretical, maybe it's useful maybe not.

My workshop manuals say that both the B210 [120Y] & the B310 [Sunny/ 210] used rear drums of 8" [203.2mm] diameter, while the P510 [Dat.1600] had rear drums of 9" [228.6mm].
I have no idea of what diameter the Z cars had, but if nzeder used them on his P510, then the alloy drums from a Z car will not work on the smaller Datsuns that we have.

hmmm
that could be interesting for a rear brake upgrade let me know what you find.

yes that is my car. it's a bit of an old pic, but it's basically like that now.

B210Sleeper - is that your car in the your avatar? If so I forgot that the US sold the B310 as a 210 much like the A10 as a 510 (why does the US do this when the rest of the world does not anyone......) so I should have said I have B210 aka 120Y.

Anyway I had a very quick look in the dark (no measurement) and I believe you could install the whole backing plate and drums from a 240/260/280z onto the rear axle/diff housing with a little work.

i don't know how soon i'll get to putting in a 200sx rear axle, but i have more than enough braking power, i was just thinking it would be a good way to loose some weight.

If it doesn't fit, can the whole 280z backing plate and such be swapped to make it work?

Here's an aluminum drum on ebay.
here