Hi, I have a 2005 Mitsubishi 380 VRX 5 Speed Manual, the time has come to put in an LSD. From my understanding quaife make an LSD for our cars,

Anyways I decided to give rpw a call to ask for info, and they said the lsd will not bolt in to the 380 manual gearbox it will need modifactions to make it work.

They did say to me if I get a previous magna gearbox the quaife LSD will bolt straight in as the lsd is for the magna not the 380 and the gearbox will bolt onto the 6g75 and I will get lower rpm's throughout the entire rev range. However I will run into the issues of cv joint length and other fitment issues.

The info i got was pretty sketchy.


Does anyone here have the quaife lsd for the 380? If so what is the part number? Will this lsd bolt straight into the mitsubsihi 380 5 speed manual gearbox without ANY modifications needed? I really dont want to purchase a magna gearbox and have the headace of fitment issues.

Anyone here who has installed the quaife lsd into a 380 gearbox please give your advice, also if anyone is selling one please drop me a PM.

I know this has been asked before but i cannot find the threads anymore and never got a solid straight answer


Thank You

Interesting. I can't say I know too much on the subject however I do know that a 380 box will go in a 3rd gen with limited modding, and seeing as the quaife LSD is made for the 3rd gen boxes I can't see it as being too difficult, hell; someone has even put one in an auto 380 trans in the past.

I would be keep to see what has to be said from someone that has done it, or knows someone that has done it.

Talk to Zilo he's put 2 into auto box 380's

Hi Freshi, to put an LSD in the 380 box is a reasonably big job, nobody makes one that "drops in". The Magna box has smaller dia. axles, smaller carrier brgs and different bolt pattern on the crown wheel and different ratio (Magna 3.7/9? 380 4.11). It has been done in Geelong but was quite expensive, and turning down and resplining axles, to me, seems to be weakening a part that takes all the power.

Fitting a Magna box and drive shafts would be the easiest solution, and use a speedo correction unit from Jcar, changing back to the 4.11 diff ratio means stripping down both boxes.

I have a Torsen LSD available (specially built by TMR for the 380) but while the Torsen is a good road diff, it is a torque multiplier, so if a wheel is off the ground there is no thing to multiply.

We ran them in the race 380s for awhile then went back to the welded centres.

Send me a PM if you want to talk about it.

The crown wheel needs to be drilled and filled as the bolt numbers are different.
The driveshaft splines go from 18 to 17 (as per the auto)

I have not been able to destroy my replined shafts with 270 kw and 700nm+ at the wheels so far Neil.

It just works if you get the right man to do the job...Paul Adams, Geelong transmissions, 03-5277-0006.

My TMR380 and my GT have them and I pioneered all the pain.

Now all you have to do is get the Quaife unit, put it in a box with the two driveshafts and the the final drive removed from the gearbox...send it to Paul...pay the money...then spin the wheels.

(Or send the whole gearbox to him....)

But even after that you will still get flogged by an auto 380 without an LSD...cause the 380 has an absolutely horrible box...first is a joke, 5th is nearly 3000rpm.

What in the hell were they thinking...?

BTW the actual respline, casehardening driveshaft machining is done by Robert Land Engineering in Geelong...(who did my plenum intercooler and turbo manifolds)

Oh...and do n ot believe a word RPW say...they know stuff all about 380's...they sold me a Quaife originally saying it will just bolt in...

(yeah, right).....:nuts::nuts::nuts:

well these are the pros and cons i find about the 380 box

Cons:

-crappy first gear ratio, its too short for the power this car makes
-crappy highway rpms
-long gear shift throw
-makes all sorts of moaning when "spooling" or holding revs up high

Pros:

-Gear ratios good for a tight track. thats it



Now i dont have an auto box I do have a manual, re-drilling the crown pin is no drama.

Do you know the spline count on a 380 5 speed manual?


So my understanding is that i have 2 options


Option one: magna quiaife lsd, magna driveshafts, tear down and rebuild, (drill crown gear). Will the magna driveshafts fit/ plug into the 380 hub?

Option two: magna quaife lsd, magna driveshafts, magna gearbox, jcar speedo correction, will the magna driveshafts bolt/fit/plug into the 380 hub? (throw 380 gearbox in the bin haha)






I need to know this before we crack open the box, because right now my car is sitting with my mechanic waiting for an answer from me, and im taking up one of hes hoists and feel sorry. I ended up blowing the clutch, snapping a cv joint, and killing a wheel bearing. So before i decide to fork out money on parts i could possibly not be using anymore, I may just send my 380 box over exchange for a magna box, and same story with the driveshafts then crack open the magna box...


My worry is that the magna driveshafts will not bolt/fit the 380 hubs without crazy modications, i know this sounds stupid but im trying to do this on a budget and i want to save every dollar i can.

you will need about four thousand bucks for the whole job if paying a mechanic.

still want answers to above questions?

you will need about four thousand bucks for the whole job if paying a mechanic.

still want answers to above questions?



Hes very fair with his rates


So yes I would still like these answers please!!! Pretty plz with icing sugar on top!!!!!

okay here is your best approach...

Get your mechanic to fix your clutch, put the car back together in a driveable state.

Get your quaife QDRM7B I think is the part number bastardised by RPW.

Ring Paul Adams and book your car in....it will take weeks...so you will need to fly home and come back later.

Avalon is the closest airport for Jetstar.

That's it.

For starters if you want to have a shorter throw for the 380 box adapt the Magna Gear Shift into the 380, has been done and works well. Makes it shorter without the notchy feel of many short shifters

The Magna drive shafts WILL work on a 380, I have done it on a 380 to test it and add to this I have a Magna with a 380 box running WITH 380 DRIVE Shafts both sides. The 380 drive shaft is about 10mm longer from memory, the magna shaft is still long enough and the 380 abs rings will fit the Magna shafts as well.

IF you want to go Magna box you HAVE to do something about the gear shift as the throw with the 380 shifter and Magna box will be horrendous. If using the 380 box then you can fit the Quaffe or even better the Wavetrek to the box, I have had 3 boxes come in with broken Quaffe thus far, one was knocked back for warranty due to the part number being ground off, 1 was knocked back because even though it had under 10000 km on it the diff was on its second owner. Third I think the guy just gave up in the end.

With your 2 options, in both, yes the Magna outer shafts WILL fit the 380 hubs no worries, as stated above, have done both ways and both worked.

aight, thanks for all your advice

For starters if you want to have a shorter throw for the 380 box adapt the Magna Gear Shift into the 380, has been done and works well. Makes it shorter without the notchy feel of many short shifters

The Magna drive shafts WILL work on a 380, I have done it on a 380 to test it and add to this I have a Magna with a 380 box running WITH 380 DRIVE Shafts both sides. The 380 drive shaft is about 10mm longer from memory, the magna shaft is still long enough and the 380 abs rings will fit the Magna shafts as well.

IF you want to go Magna box you HAVE to do something about the gear shift as the throw with the 380 shifter and Magna box will be horrendous. If using the 380 box then you can fit the Quaffe or even better the Wavetrek to the box, I have had 3 boxes come in with broken Quaffe thus far, one was knocked back for warranty due to the part number being ground off, 1 was knocked back because even though it had under 10000 km on it the diff was on its second owner. Third I think the guy just gave up in the end.

With your 2 options, in both, yes the Magna outer shafts WILL fit the 380 hubs no worries, as stated above, have done both ways and both worked.

I agree with Mal. My research shows the lever ration difference between the 380 and Magna re significantly different. However, I "feel" that you could replace the 380 gear lever part with a Magna item, possibly with some spacers under the 380's shifter assembly - there is approximately 30mm of difference in the lower half of the gear lever. You will be going from around 3:1 to 2:1 as far as gear lever ratios go. I haven't tried this mod yet, but I am looking to try in the near future.

Watching this thread closely though now. I don't think I'll keep my 380, looking to go back to a manual Magna and an LSD would be a must when I do.