Major rattle in stock na6 diff

Jakeeyjones · Postby **Jakeeyjones** » Wed Dec 17, 2014 12:36 am

Just wondering if anyone has a solution to this problem? i heard many earlier models suffer from this rattle during deceleration

Thanks
Jake

speed · Postby **speed** » Wed Dec 17, 2014 8:29 am

Never experienced this. Maybe your diff needs s rebuild?

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Jakeeyjones · Postby **Jakeeyjones** » Wed Dec 17, 2014 1:22 pm

It makes very loud grinding and rattling noises while the car is decelerating, very annoying

would you have an idea of how much a rebuild would cost?

hks_kansei · Postby **hks_kansei** » Wed Dec 17, 2014 1:37 pm

Those noises are a pretty good indication it's about stuffed.

Rebuild costs would depend on what is damaged inside and needs replacing.

The most cost effective way to fix it would be to replace the entire diff with a secondhand one, the diffs from the 1.6 aren't usually that sought after, so can be picked up fairly cheaply. (I've seen anywhere from a case of beer to about $150 listed on 1.6 open diffs)

Jakeeyjones · Postby **Jakeeyjones** » Wed Dec 17, 2014 1:48 pm

Thanks hks for the info, do many people sell them on this forum or will i have to go elsewhere? might post a wtb and see if i get any replies

speed · Postby **speed** » Wed Dec 17, 2014 5:39 pm

Weren't you chasing for big hp and going for a torsen? Maybe I have you confused with someone else. Will check my PMs

If you are chasing big hp, go straight for the torsen!

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trader · Postby **trader** » Wed Dec 17, 2014 9:12 pm

Sounds like its a lsd diff ('92?). Best bet is to start looking now for a torsen - they run for quite a while like that - just get s annoying.

aka_juffa · Postby **aka_juffa** » Thu Dec 18, 2014 11:35 am

Not meaning to question your ability to diagnose the source of the rattle, but are you 100% sure that it is the diff?

NA6 have issues with a rattle in the exhaust heat shield Fixed by locking down the heat shield with a hose clamp, or removing the heat shield or bending the heat shield to stop the offending part from rubbing on the exhaust. Note that this noise is only apparent during a certain engine rev range.

Gearbox noises due to gear lash issues. Quite often only appears after the gearbox has been removed to fit a new clutch. Found that replacing the diff with one from a later model fixed the issue as the later model as thick rubber isolation pads at the tail shaft and diff connection point......of course this will also fix your issue as stated........

j