M30/Q45 Differential, Whats the deal?

[kabukie]

Alright

So i've read in a few online sites that there is a possiblity of the M30/Q45 Differential working on a 240sx. They say that it uses the R200 Differential? Is there any truth to this Differential working on a 240sx? Also if anyone knew the years which had the 6 bolt flange that would be great!!!

Also on the Q45 which do I ask for? The one with traction control or with out?

Thanks for your time and knowledge

[orion::S14]

They do not fit.

The Q45 uses an R230, identical to the 300ZX TURBO. It does not bolt into the S13/S14 subframe...

IIRC, the M30 uses a weird rear suspension, some trailing arm setup...and has a diff similar to an older Z31 300ZX...the internals may be R200, but the case (or the whole diff) is not a bolt in deal.

If you read this on the 240sx.org page about diffs...that page sucks, lots of errors.

I have fixed the errors, and posted all the other good info for you:

http://www.ka24development.com/vlsd.html

Hope that helps... - Brian

[BadMoJo]

The M30 uses the old skool Long snout R200 IIRC, S13s and S14s use Short snout diffs. So no, they wont work.

[fdapolice]

I'm kinda late but someone sent me this link acouple weeks ago:
http://fgy33.tripod.com/id28.html
this basically says that 97-01 q45 diff is a r200 much like our r200 but with a 3.69 R&P! There are differences but they are minor ones.

[orion::S14]

^^^ You might be right...last year, everyone though the Q45 used an R230 (junk yards listed it in the interchange), but after more research, it looks like they use an R200.

I hadn't seen hard evidence until now...so that's cool.

Looks like you can use a '97-01 Q45 diff with 92-94 J30 axles to fit an S13/S14.

Although IMO, a 3.69 ratio would suck...unless you have ~600rwhp.

- Brian