Identify this diff

datfreak · Postby **datfreak** » Fri May 22, 2015 7:01 pm

http://ocau.com/pix/nw0ur
click the link - im not sure why the thumbnail isnt working

http://ocau.com/pix/ggef0

I have looked on the mx5 diff spotters guide, but this diff doesn't have the ears on flanges.
Im thinking na6 vlsd but any gurus know?

hks_kansei · Postby **hks_kansei** » Fri May 22, 2015 8:49 pm

Could be Viscous, could be a 1.8 diff.

Best option is to open it and have a look, a 7inch crown means a 1.8 diff, a 6inch is a 1.6 diff.

as to what kind of centre is in it, that's really hard to explain in words, best just post a pic.

flycasta · Postby **flycasta** » Fri May 22, 2015 9:29 pm

Its an NA6 diff........ you can tell from the cast 4 ribs that are on the top of the diff centre and run between the pinion flange and the rear housing. Initially I would have said it was an NA/NB8 diff because to the stub axle flanges with straight edges but those 4 ribs are a dead give away for an NA6 diff.

hks_kansei · Postby **hks_kansei** » Fri May 22, 2015 9:34 pm

^ perfect.

Listen to this man, he supplied and put my diff together and it's absolutely perfect.

datfreak · Postby **datfreak** » Sat May 23, 2015 9:38 am

hks_kansei wrote:Could be Viscous, could be a 1.8 diff.

Best option is to open it and have a look, a 7inch crown means a 1.8 diff, a 6inch is a 1.6 diff.

as to what kind of centre is in it, that's really hard to explain in words, best just post a pic.

flycasta wrote:Its an NA6 diff........ you can tell from the cast 4 ribs that are on the top of the diff centre and run between the pinion flange and the rear housing. Initially I would have said it was an NA/NB8 diff because to the stub axle flanges with straight edges but those 4 ribs are a dead give away for an NA6 diff.

thanks for the info guys. Someone local to me has it and he thinks it is a LSD. If it was a early torsen I'd be keen on buying it off him but from what ive read the vlsd is not a great diff.

hks_kansei · Postby **hks_kansei** » Sat May 23, 2015 9:05 pm

If it's an NA6 diff it won't be a Torsen.

they were only available for the later 1.8 (NA8 and NB) diffs.

If it's an LSD it's most likely a Viscous, or maybe a clutch pack diff (I think Kaaz and Mazdaspeed did them)