Rear Diff

[davebarks]

Have had 96 Galant VR4 for 9 days and it has blown its rear diff to pieces. Now I'm told this is common especially with mods like pod filter, front mounted intercooler, double plate clutch, and yaw and traction control. Is this true? am i facing multiple diff failures? HELP...!!

[shaun1978]

looks like someones not been changing the fluids.........

[mpau009]

I think this either the third or fourth diff failure that iv heard of in the time iv been around CVR4, so its not very common. One was after a boost controller was fitted. The other is carstens not-so-stock facelift, which has had a gearbox bearing issue before this.

Other than that as far as manuals go most people like myself just end up killing the clutch.

I dont think it will be an ongoing issue, but its hard to say. Certainly the UK guys and Bradc etc are putting some big power through the stock diff.

If you are really worried, it may be better to go straight for a S-AYC evo diff. Do a search for some more info, or theres a full write up in the members section.

[davebarks]

Fluids where black and carbon build up was evident, straight out of japan. I've been told that the double plate clutch will have meant that the power would have gone onto the diff instead of the clutch. also under power the rear diff will get a 60:40 ratio of power as opposed to the standard 50:50???? was a standard take off from the lights, not racing. clean broke off six teeth...

[bradc]

I've got a spare one, $700 for you. In good condition and has done about 110km.

You'll find that launching hard with a twin plate clutch will screw the diff and the transfer case.

[Subaru ETA]

yeah its not common at all aye,. id say just lack of maintanence more then anything. and id doubt that it would be the clutch doing the damage, more constant launching!

[Louis]

get an evo 7,8, or 9 S-AYC diff and fit it, theuy are much stronger and are a different design from the earlier evo 4,5 and 6. (and legnum). It is a straight swap apart from the flange to the prop, use the one from your old diff, and a couple of 10mm spacers at the back two bolts, as some of the later diffs have an extra casting at the back. Apart from that very easy swap and much better handling.