If it's an H190, you should just have to pull out the center and swap your crownwheel onto the LSD bit and refir it to your center.

There is a h165 with h145 axles in the early bluebird 60s diffs.

If I can get a twincab lsd how can I make it fit in a bluebird
or 620 h190?

I'll have a recount tommorrow and double check the 165 spline count.
If 1285 is the bare housing, that heaps wider than a b110. I measured a bare 110 housing today, and it was 1087 or 1187. (I can't remember which, and the mrs wouldn't let me on the puter to check this thread then and there.

A14 force, you sure on the spline count on the 165? should be between h145/150 and h190 in count. think they are 23 spline from memory

also off the top of my head the 1500 diff was about 1350. was about 20mm a side i think which was too much for me. as my plan was to just cut 10mm off the end of each axle (as there is about 10mm of spline not used at stock 1500 width) then just cut the housing down to suit. but it was still a bit wider than 1200 width

1285mm sound more like a bare diff housing width

and D on a diff variety note
H190s come with the low spline count axles, like in the previous pic, and also come with the same size spline as h165 in some diffs...or maybe that was h165 with h145 size axles, might be more correct

Quote:

Are you positive shifty? That would make it narrower than the standard B110 diff. (1305mm according to the wiki-http://datsun1200.com/modules/mediawiki/index.php?title=Diff_Widths)

Maybe my diff is 30mm as well. I just eyeballed it with a rule.
Thanks Bart!

I could of chopped\hammer out the ends of a spare bluebird housing if you wanted to run bluebird bearings.

Great info there AForce!! There are so many variations and maybe
Pigdog can chime in if he has other measurements?

Though the diff is apart, i remember that it's 1285mm from end to end including drums.

Okay
H190 (from a C20 Vannette)
Splines: 29
Spline diameter 30mm
root diameter of the splines: 29mm

H165 (from a 910/C20 vaannette/GB120 etc)
Splines:32
Spline diameter: 23.6mm
Spline root diameter: 22.9mm

H145/H150 (from a 110/210/310)
Splines: 21
spline diameter: 22mm
Spline root diamater: 21.1mm

I wasn't able to get the H190 axles out of the housing, to measure their max thickness. But they break at the thinnest part by the splines anyway.

Maybe stick this info in the wiki?