SRE30

It's not broken, just not right yet Thanks for the offer, it's already out.

I took it out last night, it's still got the weight on it, and it's brand new so it should be balanced...

I can't detect any movement/play at either the gearbox or pinion end. I first thought whip, but the gearbox and pinion are pretty well lined up. The rotational speed of the driveshaft is only about 4000rpm and they guaranteed no problems up to 9000rpm. I also can't detect any significant vibration from the gear leaver (I expect I would if it was the tailshaft whipping). If I can't get a diff to try I guess I can take it to a diff lapping place and get them to inspect the internals of the diff, if it's all OK, I will take the tailshaft to some where else to have it inspected/rebalanced. Ahh, the cost of doing something different...

Ok, I have a E30 BMW with a Nissan SR20DET. I recently replaced the weak open wheel BMW diff with a second hand R32 Skyline LSD diff. To put it in I had to get a new 3" single piece tailshaft made up, two new Mazda half shafts, new Magna outer CV's, and the original R32 inner CV's. Now between 3-4000 RPM (~110kmh) there is a horrid shudder that shakes the whole car and you can feel it most through the seat of you pants. Now, since it's all new and most of it custom it's proving difficult to track down what's causing it. The place that made the driveshaft had a look at it and ran a dial guage over everything and couldn't see what could be causing it, so suggested the diff could be the problem. I have replaced the rear wheels and tyres, same problem... Removed left hand half shaft, same problem... Remover right hand half shaft, same problem... All that's left is tailshaft and diff so I have two questions: 1. Has aonyone had this sort of problem with their diff? 2. Does anyone in Brisbane have a known good R32 LSD diff with 4.1 ratio that they would like to sell on the basis that it is the diff at fault (ie, I pay you after I fit your diff and problem goes away, or I give it back if it doesn't Any opinions? Cheers

I just purchased the diff and have no idea what condition the oil is in. I'm fitting it to the car below this week so thought I might as well change the oil while i was at it.

Thanks guys, I will give Castrol Syntrax (Synthetic) a go.

I'm replacing the oil in a R32 Viscus LSD diff, since it wasn't delivered to australia they don't seem to list the type of oil required in the books in the auto parts stores. Can someone recommend a Castrol oil that would be suitable? I say Castrol because all the other fluids are castrol and I like to keep it in the family Cheers

What sort of condition is it in and what ratio is it? Is it the same as the R32 diff only viscous, i.e are they interchangable?

Hi all, I have an E30 BMW with a SR20DET and want to replace the stock open IRS with a R200 Mechanical LSD from a R32 GTR (around 4.1 Ratio). Does anyone know where I can pick one up from in Brisbane, and what price range I should be paying, don't want to get ripped off by a wrecker. Cheers