3j plate Diff - Transmission Forum - Peugeot 306 GTi-6 & Rallye Owners Club

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Subject: 3j plate Diff

Day666

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Location: Bristol

Registered: 20 Apr 2013

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Post #1

Anyone used a 3j LSD or similar ?
Been told it may catch the casing & I may have to grind the casing down a little ?

Just ordered & Paid Miles for my 3j Plate Diff new..Can't wait for this with the Suspension bilstein B8/ Eibach & 330 ash Brakes & rear beam refurb with solid mounts & bilstein B6 group n dampers & 21mm bars hopefully should make a big Differance to handling round Castle Coombe on the two 3hr fun days booked this month & FCS June ....

Just got to fit the lot now .... LOL

Posted 16th Apr 2014 at 07:44

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #2

Dcc has one, loves it.

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Posted 16th Apr 2014 at 08:30

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Day666

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Post #3

meirion check your Inbox !
Sent you Message earlier ?

Posted 16th Apr 2014 at 09:11

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pugheaven

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Location: Fareham

Registered: 17 Dec 2006

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Post #4

How much was it dude? Im thinking about going to a plate diff depending on price

Posted 16th Apr 2014 at 09:24

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dcc

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Location: Wales

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Post #5

it will catch the casting. easiest way to fit is to have the gearbox off, and rotate the diff in the casing - you can see where it rubs. I used a dremel to make it fit. nothing worse than the tranx would need to fit. you'll also have to remove a good few of the diff allen key bolts to fit it as they are slightly fatter than you'd expect, meaning you cant get your cw on. When I first installed mine it was a f**king nightmare trying to turn (non pas 2.4 turns lock to lock) as the plates were jumping. Spoke to Lyn Morgan who advised on a friction modifier for the oil, totally changed it Smile

I think I use 75-80 oil, but this is because that's what is recommended for the gearbox not the diff.

________________________________________

205 GTI
Xsara HDI

Posted 16th Apr 2014 at 09:24

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jamiek_uk2000

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Location: Llanelli

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Post #6

How much maintenance does a plate diff require? I've heard they need adjusting from time to time, but how hard is it and how often. Using it as a track car 90% of the time

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205 GTi Red - G939 RTU - Died!
306 GTi 6 Diablo - Being resurrected! Project Thread

Looking for:
VTS P1 Rack
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Posted 16th Apr 2014 at 10:05

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Day666

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Post #7

pugheaven wrote:

How much was it dude? Im thinking about going to a plate diff depending on price

£650.00 inc Diff bearings & Miles will fit Bearings...not diff lol..
Reason I use Miles is because hes a great helpful bloke & he uses what works for him & is amazing for Back up & knowledge & his prices are keen enough !

Hope I can do box Dremel Mod in place without taking Box off ..hope ?

Got PAS on mine though ?
May have wrong Gear oil though ??
Got ....EP 75w90 semi

I use mine on Sat & some Sundays & fun days & Track days 2-3 times a year now
No serious stuff it looks quite Standard apart from 17comp mo5s
And 330Ashs front brakes ..

Bit of a mid life Car & Castle Coombes 2miles up the road
70% road 30% track days Fun !!!

Hopefully do Pugfest (Hill) this year ???
I'll be there even if I don't go up the hill !!!!

Need better Track Tyres than my Toyo Tir proxes
May go for 888

Posted 16th Apr 2014 at 11:06

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demondriverdan

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Location: Londinium

Registered: 29 Nov 2010

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Post #8

Could you take some pictures when you do it? I'm doing the same thing in a couple of months so a guide would be very useful Smile

________________________________________

Rallye Race Car

Posted 16th Apr 2014 at 11:48

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phillipm

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Post #9

I wouldn't run EP75-90 in a Pug box unless you like dead synchro's.

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Email me!
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Posted 16th Apr 2014 at 14:26

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #10

Well, not a be anyway, the ml uses that Wink

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Posted 16th Apr 2014 at 15:36

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phillipm

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Post #11

Says 75w-80 non-EP in my handbook...
It certainly shouldn't be EP either way.

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Posted 16th Apr 2014 at 21:39

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

Registered: 27 Mar 2007

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Post #12

ahhhh, what's the EP bit mean?

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Posted 16th Apr 2014 at 22:17

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Day666

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Post #13

welshpug! wrote:

ahhhh, what's the EP bit mean?

I wanted to know also ?
So googled it

What does EP mean?
EP means extreme pressure and refers to the additive used in gear oils. This additive is designed to stop metal-to-metal contact taking place between transmission components. The EP additives are usually based on sulphure and phosphorous. These elements bond to the metal surfaces where there are points of extreme pressure and temperature, forming a sacrificial chemical layer. The sulphur gives gear oils their characteristic smell.

I thought Semi W75/90 EP was a much better temp range & was told it would be better ???
Don't want to cause synchro probs ???
Don't want to damage a new 3j ... Thumbs up

Posted 16th Apr 2014 at 22:26

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Day666

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Post #14

phillipm wrote:

I wouldn't run EP75-90 in a Pug box unless you like dead synchro's.

Posted 16th Apr 2014 at 22:26

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phillipm

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Post #15

welshpug! wrote:

ahhhh, what's the EP bit mean?

Extreme Pressure - that's the solid additive packs to reduce friction and stop wear when the oil film is pushed out of the way, great for an engine, or diff, especially if it has hypoid gears - but not so good for synchro's that require a higher, consistant level of friction, and some EP additives eat the yellow metal in Pug synchro's just to make it worse.

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Posted 17th Apr 2014 at 00:08

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Day666

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Post #16

phillipm wrote:

welshpug! wrote:

ahhhh, what's the EP bit mean?

Posted 17th Apr 2014 at 07:07

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phillipm

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Post #17

I'd just run the Pug oil with possibly a friction modifier as DCC says. If you want to run something a little thicker then your best bet is this:

Castrol Syntrans
Which is still pretty thin when cold like the OE fluid.
edit - Halfords sells it btw, not much different in price if you have a trade card.

________________________________________

Posted 17th Apr 2014 at 19:14

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Day666

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Post #18

phillipm wrote:

Got PAS fitted & bought this today ?
Hopefully the correct one ?

Day666 has attached the following image:

Posted 25th Apr 2014 at 18:48

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Day666

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Post #19

demondriverdan wrote:

Could you take some pictures when you do it? I'm doing the same thing in a couple of months so a guide would be very useful Smile

Will do ...possibly next Sat Thumbs up

Posted 30th Apr 2014 at 20:37

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welshpug!

Capt Pedantic

Location: Bigend, Wales.

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Post #20

its got a peugeot gearknob on the bottle, so that's a good start Big grin

________________________________________

need a part number? get on here - http://public.servicebox.peugeot.com

Bring on the Trumpets.

Posted 30th Apr 2014 at 20:40

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Day666

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Post #21

welshpug! wrote:

its got a peugeot gearknob on the bottle, so that's a good start Big grin

Didn't Notice that Mei.... LOL

.....got two bottles of the stuff Thumbs up

Posted 1st May 2014 at 07:34

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Day666

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Post #22

Fitted The 3j without taking box off ...you will need two of you really ...
Used a Black & decker power-file to take casting away ...
Fitted diff in after drying & wiping everything out ..placed diff in main housing with torqued & Threadlocked Diff & spun it slowly by hand ...three places left a mark in casting Shown in pics ....filed those down but put New rag up to protect pinion from alloy bits ....
Put in & out 2 more times to make sure Thumbs up

Then did same with housing cover .!!!

Day666 has attached the following image:

Posted 13th May 2014 at 22:58

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Day666

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Post #23

Before Powerfile Thumbs up

Day666 has attached the following image:

Posted 10th May 2014 at 20:20

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Day666

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Location: Bristol

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Post #24

Housing cover ...filed left hand side

Filed down ...1.5-2max in 3places Thumbs up

Day666 has attached the following image:

Posted 11th May 2014 at 06:17

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Day666

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Location: Bristol

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Post #25

Car just feels ...unreal ....The 3j has just transformed the steering & handling ....
It feels a different car with VTS Mk1 rack as well...
Can't wait for FCS now Whistle

Fitted some of Miles gear linkages & Thats transformed gears also .... Thumbs up

Posted 13th May 2014 at 23:02

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